SAT GRE TOEFL IELTS exhaustion Definition The state of being extremely tired; extreme fatigue. Example "He collapsed from exhaustion after the triathlon." Sign in to save SAT Quiz → GRE Quiz → TOEFL Quiz → IELTS Quiz → ← exhausted exhaustive → Study tips featuring "exhaustion" Let the Argument Reveal Unfamiliar Word Meanings Study the Exact Words Examiners Use Group Words Together by Emotional Tone 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