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Table of Contents
Table of Contents
Antonyms
Synonyms
Etymology

1. efficacious

adjective. ['ˌɛfəˈkeɪʃəs'] marked by qualities giving the power to produce an intended effect.

Antonyms

Synonyms

Etymology

  • efficacious (English)
  • efficacieux (Old French (842-ca. 1400))
  • efficax (Latin)

2. efficacious

adjective. ['ˌɛfəˈkeɪʃəs'] producing or capable of producing an intended result or having a striking effect.

Antonyms

Synonyms

Etymology

  • efficacious (English)
  • efficacieux (Old French (842-ca. 1400))
  • efficax (Latin)
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