What are the antonyms for INEFFECTIVE?

Synonyms for INEFFECTIVE

Usage Examples for INEFFECTIVE

  1. She was permitted to have her say out, with those scornful eyes fixed on her, until she trailed off into ineffective silence, when the next question came. - "The Honour of the Clintons" by Archibald Marshall
  2. Persuade him to annul the order of banishment or render it ineffective. - "Secret Memoirs: The Story of Louise, Crown Princess" by Henry W. Fischer