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What is another word for
efficacy
?
Need
synonyms for efficacy
? Here's a list of
similar words
from our
thesaurus
that you can use instead.
Contexts
The ability to produce a desired effect or result
The state or condition of being useful
The quality of being clear, logical, and convincing
The strength and vitality required for sustained physical or mental activity
Noun
▲
The ability to produce a desired effect or result
effectiveness
efficiency
value
power
productiveness
success
virtue
capacity
efficaciousness
efficacity
potency
use
usefulness
ability
capability
effect
effectualness
fruitfulness
performance
adequacy
advantage
benefit
competence
constructiveness
edge
effectuality
potence
successfulness
capableness
influence
sufficiency
strength
weight
worth
productivity
suitability
effectivity
merit
utility
organization
US
adeptness
suitableness
skill
competency
skilfulness
potential
force
facility
resourcefulness
organisation
UK
appropriateness
talent
fitness
satisfactoriness
acceptability
appositeness
orderliness
prosperity
planning
impact
appropriacy
regulation
prosperousness
aptness
commensurateness
operation
proficiency
thoroughness
expertise
helpfulness
profitability
aptitude
deftness
skillfulness
prowess
faculty
clout
function
know-how
asset
agency
forcefulness
validity
validness
rightness
qualifications
fittingness
properness
progress
eligibility
progression
what it takes
fairness
activity
instrumentality
professionalism
readiness
scheduling
structure
capabilities
reasonableness
tolerability
carrying on
pertinence
passableness
standardization
US
management
requisiteness
powerfulness
functioning
tolerableness
okayness
working
projection
action capability
behaviour
UK
action
preparation
outlining
forecasting
standardisation
UK
time management
running
behavior
US
coherence
order
distinction
economy
forte
quality
grace
attribute
excellence
plus
gift
expertness
artistry
flair
virtuosity
property
potentiality
savvy
nous
finesse
propensity
endowment
mastery
knack
wherewithal
means
bent
calibre
UK
right stuff
instinct
chops
smarts
might
qualification
skillset
competitiveness
adroitness
technique
savoir faire
caliber
US
superpower
command
dexterity
genius
dynamism
consistency
logicality
clockwork
flawlessness
smoothness
preciseness
regularity
excellency
credit
advantageousness
meritoriousness
long suit
strong suit
cardinal virtue
good point
good quality
plus point
strong point
redeeming feature
cost-effectiveness
bang for the buck
craft
touch
agility
class
form
panache
experience
skills
polish
elegance
nimbleness
poise
cleverness
pizzazz
US
ease
craftsmanship
refinement
workmanship
art
accomplishment
pzazz
UK
masterfulness
effortlessness
grasp
sophistication
style
dexterousness
handiness
sharpness
mastership
inclination
gracefulness
artistic ability
ableness
slickness
acumen
knowledge
fluency
ingenuity
expertism
grip
masterliness
mind
brain
head
moxie
stuff
dodge
leaning
savoir-faire
green thumb
artfulness
natural ability
game
achievement
practicality
magic
smartness
versatility
steadiness
mojo
precision
polished skill
intelligence
goods
puissance
accuracy
neatness
hard skill
brains
quickness
niftiness
delicacy
wizardry
legerdemain
spryness
stature
straightforwardness
eye-hand coordination
hand-eye coordination
sleight of hand
up to it
the goods
understanding
easiness
simplicity
authority
training
gumption
practice
maturity
life skills
practical knowledge
specialty
US
speciality
UK
metier
thing
métier
learning
makings
IQ
advancement
headway
bag
department
medium
niche
eminency
cup of tea
core competency
claim to fame
special ability
more ❯
“Current evidence on the
efficacy
of acupressure and acupuncture in treating pregnancy-induced nausea is inconclusive.”
Noun
▲
The state or condition of being useful
utility
usefulness
benefit
use
value
advantage
effectiveness
service
practicality
profit
avail
help
helpfulness
convenience
mileage
worth
productiveness
serviceability
advantageousness
viability
expediency
functionality
workability
account
appropriateness
feasibility
efficiency
serviceableness
practicability
fitness
profitability
handiness
favor
US
favour
UK
note
point
function
relevance
adequacy
applicability
niftiness
good
assistance
gain
merit
substance
aid
significance
purpose
quality
usability
importance
goodness
neatness
versatility
influence
impact
sense
consequence
power
upside
effect
edge
bearing
strong point
perks
vantage
reward
validity
success
benefits
advantages
profitableness
worthiness
greatness
meaningfulness
meaning
betterment
gratification
improvement
boon
virtue
significancy
estimation
caliber
US
calibre
UK
desirability
grade
grounds
use of
benefit of
excuse
justification
start
call
asset
potency
magnitude
strength
implication
import
superiority
bang for the buck
interest
blessing
welfare
prosperity
plus
well-being
benediction
perk
happiness
behoof
percentage
satisfaction
mark
eminence
sake
moment
usage
weight
concern
advancement
weightiness
gravity
seriousness
prominence
momentousness
signification
pith
strengthening
prize
nutritional
health
nutritious
fortune
greater good
privilege
bonus
attraction
expedience
appeal
excellence
distinction
allure
meritoriousness
behalf
good fortune
health-giving
commonwealth
nourishing
godsend
additional benefit
leg-up
added extra
fringe benefit
perquisite
leeway
leverage
stature
class
attractiveness
credit
preference
beauty
good point
support
foredeal
advisability
break
return
luck
pre-eminence
joyfulness
pleasure
melioration
grace
solace
manna
anodyne
felicity
enjoyment
delight
consolation
comfort
ease
joy
relief
growth
mercy
ace in the hole
ace up your sleeve
valuation
endowment
gift
talent
perfection
prosperousness
wellness
robustness
weal
wholeness
soundness
healthiness
wholesomeness
successfulness
more ❯
Noun
▲
The quality of being clear, logical, and convincing
cogency
persuasiveness
effectiveness
persuasion
force
authority
forcefulness
power
weight
strength
conclusiveness
convincingness
influence
potency
validity
soundness
punch
point
suasiveness
plausibility
foundation
impressiveness
authoritativeness
eloquence
logic
impact
credibility
rationality
reasonableness
intensity
vigor
US
vigour
UK
dynamism
logicality
coherence
unanswerability
validness
articulateness
clarity
conviction
lucidity
methodicalness
orderliness
consistency
good organization
might
value
powerfulness
clout
substance
capability
muscle
sway
effect
significance
efficaciousness
grounds
ability
gravity
puissance
competence
emphasis
capacity
potence
sinew
horsepower
energy
firepower
mightiness
efficiency
weightiness
forcibleness
appeal
wallop
bite
dominance
determination
gumption
sapience
legality
legitimacy
viability
defensibility
sustainability
justifiability
believability
substantiality
reliability
authenticity
bona fides
candidness
right
indisputability
truth
realness
truthfulness
fierceness
assertiveness
aggressiveness
vividness
efficacity
richness
greatness
grandeur
virtue
performance
consequence
importance
genuineness
genuinity
moment
leverage
import
pull
brawn
prowess
teeth
consideration
credit
prestige
momentousness
heft
account
toughness
robustness
valour
UK
muscularity
stamina
sturdiness
command
stoutness
beef
mana
signification
magnitude
jurisdiction
mastery
arm
hard power
valor
US
domination
moxie
strong arm
steam
control
pith
in
juice
potential
kick
headiness
what it takes
more ❯
Noun
▲
The strength and vitality required for sustained physical or mental activity
energy
life
vitality
fire
liveliness
spirit
animation
drive
verve
pep
vigour
UK
zip
go
power
vivacity
zest
get-up-and-go
might
strength
vigor
US
zeal
forcefulness
punch
spiritedness
stamina
zing
ardour
UK
bounce
dynamism
effervescence
enthusiasm
oomph
passion
potency
spark
sparkle
vibrancy
brio
buoyancy
determination
élan
exuberance
perkiness
pzazz
UK
pizzazz
US
sprightliness
vim
activity
dash
esprit
fizz
force
gusto
hardihood
juice
moxie
push
resilience
welly
exertion
feistiness
gas
intensity
spring
application
ardor
US
birr
effectiveness
efficiency
endurance
enterprise
fortitude
initiative
momentum
operativeness
pluck
resources
spontaneity
steam
toughness
tuck
vehemence
virility
beans
ginger
sap
snap
starch
vim and vigour
fervour
UK
fervor
US
vinegar
eagerness
vivaciousness
elan
ebullience
excitement
spunk
high spirits
panache
keenness
warmth
motivation
vigorousness
tenacity
robustness
earnestness
fervency
ambition
relish
gumption
avidity
lustiness
action
guts
doggedness
gaiety
vibrance
dedication
hustle
fieriness
boldness
commitment
heart
resolve
appetite
joy
violence
aggressiveness
ardency
muscle
fierceness
emotion
perseverance
impetus
cheerfulness
happiness
feeling
briskness
grit
joie de vivre
zap
zestfulness
high-spiritedness
kick
passionateness
backbone
fanaticism
peppiness
steadfastness
ferocity
intenseness
staying power
jauntiness
resolution
exhilaration
jazziness
bang
puissance
indefatigability
will power
devotion
pertinacity
intentness
aggression
light-heartedness
single-mindedness
bounciness
jollity
heat
purposefulness
chirpiness
fury
assiduity
activeness
effort
courage
pleasure
enjoyment
tirelessness
staunchness
persistence
sinew
constancy
horsepower
readiness
urgency
perseveration
purpose
love
impact
delight
severity
merriment
strength of character
cheeriness
clout
resoluteness
bustle
desire
vividness
intrepidity
bravery
radiance
nerve
mettle
obstinacy
fervidness
courageousness
joyfulness
potence
firepower
tenaciousness
willpower
ambitiousness
capability
hunger
relentlessness
thrust
tension
ecstasy
flair
motion
breeziness
diligence
irrepressibility
pepper
self-motivation
zealousness
resource
get up and go
what it takes
pertness
quickness
daring
fire in belly
impetuosity
propulsion
conviction
movement
stick-to-itiveness
sincerity
velocity
interest
audacity
brightness
right stuff
speed
rapture
frenzy
depth
hardiness
firmness
sedulousness
resistance
wildness
stuff
spin
wholeheartedness
ferment
aspiration
valor
US
punchiness
colour
UK
powerfulness
pertinaciousness
heartiness
color
US
friskiness
hustle and bustle
indomitability
legs
tolerance
determinedness
stubbornness
strong-mindedness
fever
soul
braveness
brilliance
strain
dauntlessness
pluckiness
ability
vehemency
valour
UK
assertiveness
striving
power of endurance
obdurateness
ferociousness
white heat
virtuosity
vital spark
life force
intestinal fortitude
inspiration
thew
driving force
lust
thirst
Dunkirk spirit
bite
strength of will
firmness of purpose
buoyance
scintillation
go-getting
stick-to-it-iveness
boisterousness
pressure
imagination
resourcefulness
peartness
strong emotion
airiness
alacrity
conscientiousness
creativity
inventiveness
buzz
flamboyance
adventure
savagery
impulsion
sedulity
jazz
stimulus
avidness
impulse
topspin
turbulence
confidence
industry
leadership
stress
venturesomeness
tempestuousness
committedness
assiduousness
motive
gameness
rampancy
storm
rise
trouble
overdrive
industriousness
decision
fearlessness
emotionalism
joviality
decidedness
cheer
assurance
spine
balls
devotedness
forward spin
gutsiness
adventurousness
sunniness
playfulness
weight
merriness
excess
concentration
empressement
jolliness
potential
fun
bloom
hard work
intent
productiveness
busyness
willingness
laboriousness
extremity
alertness
strength of mind
blitheness
sentiment
humour
UK
humor
US
obduracy
hot-bloodedness
lightheartedness
inflexibility
decisiveness
impelling force
moral fiber
US
physical energy
fitness
blithesomeness
forward motion
thewiness
pith
capacity
red heat
high gear
granite
affection
intension
moral fibre
UK
lifeblood
mirth
stickability
vengeance
affectivity
sense of purpose
bulldog spirit
fixity of purpose
vital force
stout-heartedness
emulation
yearning
hankering
itch
longing
keen interest
elan vital
goal-setting
entrepreneurial spirit
a sense of purpose
sportiveness
aim
intrepidness
mana
sassiness
will
full of life
optimism
beef
bound
bob
elation
pizazz
delectation
glitz
fire in the belly
tittup
lilt
exuberancy
character
stylishness
style
joyousness
gayness
abandon
bliss
flourish
volatility
excitedness
wits
stoicism
richness
fascination
light
good humor
US
éclat
great enthusiasm
impressiveness
good cheer
good humour
UK
point
impellent
self-assurance
asperity
acrimony
acerbity
splendour
UK
manfulness
bravura
ostentation
exhibitionism
display
lustre
UK
toughness of spirit
have-a-go attitude
originality
pulse
emphasis
incentive
luster
US
ingenuity
spunkiness
stir
inclination
fondness
immovability
splendor
US
calenture
imaginativeness
purposiveness
desirousness
burning passion
motive force
gladsomeness
grievousness
seriousness
cleverness
taste
endeavor
US
labour
UK
endeavour
UK
impatience
yen
talent
snappiness
flurry
continuing motion
brawn
glow
flare
flame
toil
sore
irateness
fixed purpose
strong interest
love of life
Sitzfleisch
vim and vigor
being full of the joys of spring
fight
rigour
UK
steadiness
competitiveness
morale
mania
draft
US
draught
UK
brunt
sock
delirium
devoutness
superpower
pitch
juggernaut
youthfulness
innovativeness
pow
arm
subjection
militancy
furiousness
care
extreme
boundless enthusiasm
brawniness
brute force
grunt
physical ability
will to win
dispatch
dazzle
pains
labor
US
rigorousness
what-it-takes
quick-wittedness
attentiveness
mightiness
rigor
US
continuance
hardworkingness
native wit
self-reliance
spirit of adventure
attention
acuteness
volume
deepness
tenseness
magnitude
weightiness
sharpness
inertia
heedfulness
acceleration
athleticism
muscularity
flare-up
carefulness
dogmatism
certitude
driving power
heed
high pitch
certainty
healthfulness
healthiness
mobility
self-confidence
breath
stiff upper lip
commotion
thrills
gallantry
functioning
bottle
grittiness
health
sitzfleisch
ferity
actuation
events
drama
spriteliness
frolicsomeness
animal spirits
motility
qi
fiber
US
fibre
UK
cojones
steel
hullabaloo
hubbub
fuss
happenings
force of life
animating force
vital principle
vis vitalis
well-being
living force
salubrity
vital energy
salubriousness
vis vitae
willfulness
surge
conditioning
movability
spryness
implacability
propelling force
kicks
proceedings
incidents
eventualities
hijinks
high jinks
episodes
hysteria
amusement
suppleness
agility
flexibility
motive power
goings-on
occurrences
carryings-on
chain of events
full head of steam
wind in one's sails
true grit
freedom of movement
thrill
glee
entertainment
play
foolery
blast
buffoonery
satisfaction
festivity
bodily process
body process
bodily function
wantonness
silliness
foolishness
jocundity
knavery
tomfoolery
clowning
funniness
facetiousness
jocosity
felicity
distraction
gamboling
US
romping
joking
festiveness
comedy
laughter
nonsense
ball
rejoicing
revelry
gladness
hilarity
gambolling
UK
jocularity
roguishness
gleefulness
waggery
riot
solace
treat
jocoseness
grins
good time
humorousness
gambol
levity
mischief
diversion
jesting
mischievousness
living it up
mirthfulness
rascality
liking
urge
fancy
craving
attachment
faithfulness
partiality
reverence
fidelity
piety
weakness
wish
allegiance
spirituality
piousness
appetency
adherence
religiousness
deference
propensity
fealty
preference
devotement
favor
US
observance
favour
UK
sanctity
worship
consecration
service
adoration
hopefulness
disposition
pining
stomach
agitation
penchant
proclivity
need
religiosity
pietism
like
religionism
bullishness
positivism
idealism
shine
anticipation
greed
bent
positiveness
predilection
sureness
amenability
appreciation
mind
sanguineness
soft spot
hope
ache
obligingness
bias
voracity
appetence
rose-colored glasses
greediness
looking on bright side
leaning
easiness
calmness
loyalty
faith
expectation
positivity
letch
infatuation
love affair
thirstiness
trust
encouragement
stimulation
jones
excitation
palate
tendency
use
sanguinity
attraction
affinity
thing
furor
US
positive attitude
turmoil
preparedness
positive thinking
agreement
consent
agreeableness
gratification
goodwill
contentment
flap
feverishness
appetition
contentedness
cooperation
volition
compliance
furore
UK
voraciousness
fixation
respect
excitability
effusiveness
anxiety
hurry
admiration
madness
flutter
perturbation
obsessiveness
euphoria
virtue
overenthusiasm
rage
tooth
over-enthusiasm
craze
druthers
predisposition
hungering
proneness
want
burning
cup of tea
obsession
glory
facility
sensation
feelings
emotions
hungriness
estimation
intense desire
praise
support
insistence
forcibleness
nervousness
vociferousness
sense of God
religious observance
religious zeal
religious fervor
forthrightness
outspokenness
tropical heat
indulgence
instigation
expectancy
thirsting
strong desire
sanctimoniousness
goods
suspense
pertinence
tenderness
address
ado
aptness
solicitude
carefreeness
haste
jubilation
savor
US
savour
UK
wishing
intoxication
charge
content
engrossment
deliberation
hastiness
rashness
bubbliness
eye
impulsiveness
regard
anger
monomania
hurrah
solemnity
ants in pants
fandom
incandescence
pep talk
favouritism
UK
favoritism
US
unfailingness
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efficacy
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Related Words and Phrases
efficient
efficiency
efficacity
efficacious
efficaciousness
efficiently
efficaciously
efficiencies
efficacies
efficacities
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efficiencies
efficiency
efficiency analyst
efficiency consultant
efficiency engineer
efficiency expert
efficacity
efficacities
efficaciousness
efficaciously
efficacious
efficacies
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