caustic

Part of speech: adjective

Corroding; corrosive; sarcastic.

Part of speech: noun

A caustic substance.

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Usage examples "caustic":

  1. The Baroness was devoid of religious feelings, and she became, therefore, the most bitter and caustic of cynical critics at heart, though she guarded her expression of these sentiments from policy. - "An Ambitious Man", Ella Wheeler Wilcox.
  2. After a good deal of persuasion, for he was at first quite frightened at me, he consented to allow me to apply the caustic. - "Travels in the Great Desert of Sahara, in the Years of 1845 and 1846", James Richardson.
  3. Mr. Dodge recovered his temper now that he saw a chance of disconcerting his caustic visitor. - "A Mysterious Disappearance", Gordon Holmes.