efficacious

Speech parts

1. efficacious - Noun

2. efficacious - Adjective

Meaning

Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.

Source: Webster's dictionary

Synonyms

good active successful effective powerful useful capable sufficient efficient valid functional telling adequate productive prevalent
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Antonyms

inefficacious sisyphean empty unsuccessful inferior inadequate
Show all antonyms

Related terms

effect effective efficiency efficient efficacy effectual

Phrases with the word

less efficacious be efficacious

Examples

Example is always more efficacious than precept. Samuel Johnson

It isn't given for us to know those rare moments when people are wide open and the lightest touch can wither or heal. A moment too late and we can never reach them any more in this world. They will not be cured by our most efficacious drugs or slain with our sharpest swords. F. Scott Fitzgerald

Teaching at best beckons us to morality, but it is not in itself efficacious. Teaching is like a mirror. It can show you if your face is dirty, but it the mirror will not wash your face. Ravi Zacharias

I find her anecdotes more efficacious than sheep-counting, rain on a tin roof, or alanol tablets.... you will find me and Morpheus, off in a corner, necking. Dorothy Parker

Wealth, religion, military victory have more rhetorical than efficacious worth. George Santayana

For those impervious to history, only sterilization and quarantine are efficacious. Sheri S. Tepper

Close letter words and terms

effete effetely effeteness efficaciously efficaciousness efficacity