What are the antonyms for GULLIBLE?

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Synonyms for GULLIBLE

Usage Examples for GULLIBLE

  1. Not even good Turkish flintlocks; a pair of the sort of weapons hastily thrown together by native craftsmen or imported ready- made from Belgium for bazaar sale to gullible tourists. - "Murder in the Gunroom" by Henry Beam Piper
  2. Business men are too gullible, any how; it would be a good lesson to Roswell and Haviland. - "Flowing Gold" by Rex Beach