English dictionary



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English adjective: efficacious

1. efficacious marked by qualities giving the power to produce an intended effect


SamplesWritten propaganda is less efficacious than the habits and prejudices...of the readers.
The medicine is efficacious in stopping a cough.


Similareffective


See alsoeffective, effectual, efficacious


Attributeefficaciousness, efficacy


Antonymsinefficacious

2. efficacious producing or capable of producing an intended result or having a striking effect


SamplesAn air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation.
Effective teaching methods.
Effective steps toward peace.
Made an effective entrance.
His complaint proved to be effectual in bringing action.
An efficacious law.


Synonymseffective, effectual


Similarhard-hitting, impelling, impressive, rough-and-ready, telling, trenchant


See alsoefficacious, efficient, potent, powerful, stiff, strong, useful, utile


Attributeeffectiveness, effectivity, effectuality, effectualness


Antonymsineffective, ineffectual, uneffective









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