Synonyms and Antonyms of infallible
1 not being or likely to be wrong a teacher with an infallible memory for names Synonyms of infallible unerring, unfailing Words Related to infallible errorless, faultless, flawless, impeccable; certain, foolproof, inerrant, perfect, sure; dependable, reliable Near Antonyms of infallible defective, faulty, flawed, imperfect; undependable, unreliable Antonyms of infallible fallible
2 not likely to fail an infallible cure for hiccups Synonyms of infallible can't-miss, certain, fail-safe, sure, surefire, unfailing Words Related to infallible dependable, reliable; deadly, unerring Near Antonyms of infallible doubtful, questionable, uncertain Antonyms of infallible fallible
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