Skip to main content
(ef-fi-ca-cious) 4 syllables

Definition

adjective. able to produce a desired effect or result.

Example Sentence

The treatment showed signs of being efficacious for this group of patients.

More Example Sentences

She found an efficacious way to study.

Hear It! Say It! Write It!

efficacious
Hear It! Say It! Write It!

Rhymes

  • gracious
  • spacious

  • audacious
  • capacious
  • ceraceous
  • cretaceous
  • fallacious
  • flirtatious
  • hellacious
  • herbaceous
  • horatius
  • ignatius
  • loquacious
  • predaceous
  • salacious
  • sebaceous
  • tenacious
  • vexatious
  • vivacious
  • voracious

  • efficacious
  • ostentatious
Need accessibility help? If you experienced an issue using the dictionary, you can send us an accessibility support request.