[leth.ar.gy] n [ME litargie, fr. ML litargia, fr. LL lethargia, fr. Gk lethargia, fr. lethargos forgetful, lethargic, irreg. fr. lethe] (14c) 1: abnormal drowsiness
2: the quality or state of being lazy, sluggish, or indifferent syn lethargy, languor, lassitude, stupor, torpor mean physical or mental inertness. lethargy implies such drowsiness or aversion to activity as is induced by disease, injury, or drugs "months of lethargy followed my accident". languor suggests inertia induced by an enervating climate or illness or love "languor induced by a tropical vacation". lassitude stresses listlessness or indifference resulting from fatigue or poor health "a depression marked by lassitude". stupor implies a deadening of the mind and senses by shock, narcotics, or intoxicants "lapsed into an alcoholic stupor". torpor implies a state of suspended animation as of hibernating animals but may suggest merely extreme sluggishness "a once alert mind now in a torpor".