SAT GRE infallible Definition Never capable of making mistakes or being wrong. Example "Even experts aren't infallible; everyone can make errors." Sign in to save SAT Quiz → GRE Quiz → ← inexplicable infamous → Study tips featuring "infallible" Let the Argument Reveal Unfamiliar Word Meanings Group Words Together by Emotional Tone Map the Author's Attitude Before Reading Questions Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal