temporary loss of strength and energy resulting from hard physical or mental work (Freq. 2) - he was hospitalized for extreme fatigue - growing fatigue was apparent from the decline in the execution of their athletic skills - weariness overcame her after twelve hours and she fell asleep • Syn: fatigue, tiredness • Derivationally related forms: tired (for: tiredness), weary, fatigue (for: fatigue) • Hypernyms: temporary state • Hyponyms: eyestrain, asthenopia, jet lag, exhaustion, grogginess, loginess, logginess