effectatious
availing
efficious
efficient
good
supereffective
efficacious
efficaciously
dynamize
cut it
effectively
where it counts
articulate
potent
effectivate
effectivize
snug
reasonable
effectuously
efficaciousness
cooking with gas
complaisantly
invaluably
stroke
make
mitigable
well-handled
manageable
well-oiled
expedientially
equieffective
resultfully
operational
reputably
habile
saturably
consistent
practicably
cut the mustard
expediency
accomplishable
approbatively
adherently
impertinently
resolutely
pertly
freshly
indomitably
alleviable
adequately
impudently
performantly
key
saucily
resultatively
home and dry
concretively
husbanded
validly
conformable
unfailingly
qualifiably
observably
sufficingness
appositely
high speed, low drag
treatably
efficiently
undisputably
educably
workable
successfully
agreeably
aptitudinally
feasible
operatively
mitigatedly
applicably
complacentially
cupcake
beneficially
hardy
biddably
iterable
alright
reliably
okay
fit
effecting
all right
performatively
usably
exemplarily
O.K.
conducively
completively
boldfaced
effectatious
availing
efficious
efficient
good
supereffective
efficacious
potent
snug
reasonable
articulate
mitigable
well-handled
manageable
well-oiled
equieffective
operational
habile
consistent
accomplishable
alleviable
key
home and dry
husbanded
conformable
workable
feasible
hardy
iterable
fit
effecting
high speed, low drag
boldfaced
efficaciously
effectively
where it counts
effectuously
complaisantly
invaluably
expedientially
resultfully
reputably
saturably
practicably
approbatively
adherently
impertinently
resolutely
pertly
freshly
indomitably
adequately
impudently
performantly
saucily
resultatively
concretively
validly
unfailingly
qualifiably
observably
appositely
high speed, low drag
treatably
efficiently
undisputably
educably
successfully
agreeably
aptitudinally
operatively
mitigatedly
applicably
complacentially
beneficially
biddably
alright
reliably
okay
all right
performatively
usably
exemplarily
O.K.
conducively
completively
efficaciousness
stroke
expediency
sufficingness
dynamize
cut it
articulate
effectivate
effectivize
make
cut the mustard
cupcake
English words for 'efficacious.'
As you may have noticed, above you will find words for "efficacious.". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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living in poverty
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a dirge.
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tome
ergonomic
the more ... the more ...
of the same type
improvization
unwillingness.
greatly frightened
an academic.
fresh start
unpleasant feeling
millilitre
strengthen
rental car
one more
foolish monk
patrol car
A thingamajig
Moderate
sometimes placed in family Asphodelaceae
Briton
heated
a yokel.
museum
loss of appetite
critical condition
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deferment
sometimes classified in family Cycadaceae
not allowed
preeminence
bonds
PVC
showing
oblong
document
genius
in the end