efficacious
adjectiveHow to pronounce efficacious:
Definition of efficacious:
- efficacious (adjective):
- producing the intended result
- having the power to produce a desired effect
- marked by qualities giving the power to produce an intended effect.
Synonyms for efficacious:
active
adequate
capable
competent
effective
effectual
efficaciousness
efficacy
efficient
fruitful
operative
potent
powerful
productive
serviceable
successful
useful
Antonyms for efficacious:
abortive
anticlimactic
bad
barren
bootless
counterproductive
defeated
depressed
doomed
empty
failed
feckless
feeble
flimsy
foiled
forceless
forfeiting
fruitless
futile
hamstrung
helpless
hollow
hopeless
idle
ill-fated
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Here are some other common 5-syllable words.
- unutterably
- geographical
- exceptional
- enlighteningly
- cyclothymia
- incapacitate
- validatory
- unexpectedness
- contradictory
- regurgitation
- anthropogenic
- stoichiometric
- mediocrity
- unsolicited
- insectivorous
- inimitable
- uproariously
- self-indignation
- epididymis
- echolalia
- commemoration
- annihilation
- parallelism
- oversensitive
- inspirational
- forty four hundred
- exasperating
- corroborator
- gullibility
- emancipation
- specifically
- mythological
- inextricable
- similarity
- chronological
- advantageously
- unresilient
- emaciated
- un-coincidental
- extravagantly
- disobedience
- eloquently
- retrocognitive
- multiplicative
- irregularly
- atrociously
- considerately
- antagonism
- technological
- shilly-shallying
- … more
Syllable Fun Fact
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