What are the antonyms for ESSENTIAL?

Synonyms for ESSENTIAL

Usage Examples for ESSENTIAL

  1. Motion therefore was regarded as essential to matter. - "A Philosophical Dictionary, Volume 7 (of 10) From "The Works of Voltaire - A Contemporary Version"" by François-Marie Arouet (AKA Voltaire) Commentator: John Morley Tobias Smollett H.G. Leigh
  2. The lungs are the essential organs of respiration. - "Common Diseases of Farm Animals" by R. A. Craig, D. V. M.