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Synonyms and Antonyms of unfailing

  1. 1 not being or likely to be wrong <an unfailing judge of personal character> Synonyms unerring, infallibleRelated Words errorless, faultless, flawless, impeccable; certain, foolproof, inerrant, perfect, sure; dependable, reliableNear Antonyms defective, faulty, flawed, imperfect; undependable, unreliableAntonyms fallible

  2. 2 not likely to fail <the writer's unfailing sense of humor is again evident in his newest book> Synonyms can't-miss, certain, fail-safe, sure, surefire, infallibleRelated Words dependable, reliable; deadly, unerringNear Antonyms doubtful, questionable, uncertainAntonyms fallible

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