Efficacious antagonist Synonyms

Definitions for Efficacious


  • (adjective) producing or capable of producing a desired result
  • (adjective) marked by qualities giving the power to produce an intended effect
  • (adjective) producing or capable of producing an intended result or having a striking effect

Definitions for Antagonist


  • (noun) one that is hostile toward another
  • (noun) one that takes a position opposite another in a competition or conflict
  • (noun) someone who offers opposition