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Verbs Nouns Adjectives/Adverbs Pronouns Prepositions Conjunctions
fallible (Advanced search)

SAT5000 fallible Capable of erring. adj.
SAT5000 infallible Exempt from error of judgment, as in opinion or statement. adj.

fallible {adj} (capable of making mistakes or being wrong) infallible {adj} (without fault or weakness; incapable of error or fallacy)