efficacious

Meaning

Effective; possessing efficacy.

Opposite of

inefficacious

Synonyms

effective

effectual

efficient

useful

strong

productive

fruitful

telling

powerful

mighty

potent

prediction

resulting

serviceable

smart

soul

spirit

spiritual

successful

supernatural

working

resultful

effectiveness

able

of a quick effect

active

divine

drastic

driving

energetic

high-performance

ingenious

intelligent

Translations

efficace

eficaz

efficace

eficaz

αποτελεσματικός

wirksam

effectief

werkzaam

eficiente

werkdadig

doeltreffend

effectif

efficax

afdoend

Pronounced as (IPA)

/ˌɛf.ɪˈkeɪ.ʃəs/

Etymology

From Old French efficacieux, from Latin efficāx (“efficacious”) + -ous, from efficere (“to effect, to accomplish”); see effect.