Synonyms
Antonyms
Etymology

1. efficacious

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

Etymology

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

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Rhymes with Efficacious

  • proteinaceous
  • perspicacious
  • ostentatious
  • crustaceous
  • vexatious
  • predaceous
  • mendacious
  • loquacious
  • flirtatious
  • voracious
  • vivacious
  • tenacious
  • sebaceous
  • salacious
  • ignatius
  • horatius
  • hellacious
  • fallacious
  • capacious
  • spacious
  • herbaceous
  • gracious
  • ceraceous
  • audacious
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