efficacious

The word “efficacious” has 4 syllables: ef-fi-ca-cious

It's pronounced as /ˌɛfɪˈkeɪʃəs/

What is synonym and antonym for efficacious?

In the thesaurus, “efficacious” has 54 synonyms and 32 antonyms.

Here are synonyms and antonyms for efficacious along with examples of usage in sentences.

Synonyms for efficacious

accomplished
active
adept
adequate
applicable
capable
cogent
competent
consummate
convincing
dynamic
effective
effectual
efficient
energetic
experienced
expert
feasible
fruitful
functional
hyperefficient
influential
killer
masterly
operative
potent
powerful
practicable
practical
practiced
practised
productive
proficient
puissant
realizable
serviceable
skilled
skillful
sound
striking
strong
successful
telling
ultraefficient
usable
useable
useful
valid
versed
veteran
virtuoso
virtuous
workable
working

Antonyms for efficacious

abortive
bootless
counterproductive
empty
fruitless
futile
hollow
idle
impotent
incapable
incompetent
ineffective
ineffectual
inefficacious
inefficient
inexperienced
inexpert
inoperative
pointless
unavailing
unfruitful
unproductive
unprofitable
unqualified
unseasoned
unskilled
unskillful
unsuccessful
useless
vain
weak
worthless

Meanings of efficacious

adjective
1. Effective; possessing efficacy.

Example Sentences

The medicine proved efficacious in treating the patient's symptoms.
Proper planning and organization are efficacious strategies for productivity.
The company implemented an efficacious marketing campaign that boosted sales significantly.
Education is widely recognized as an efficacious tool for social mobility.
The lawyer presented an efficacious argument that persuaded the jury to deliver a favorable verdict.

On this page you'll find 86 synonyms, antonyms, or another words to efficacious, such as: abortive, accomplished, active, adept, adequate, applicable, bootless.

Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.