Another word for lassitude
languor, faintness, weariness, tiredness, fatigue, heaviness, stupor, dullness, drowsiness, yawning, exhaustion, burnout, prostration, drooping, torpor, torpidity, lethargy, apathy, ennui, stupefaction, inappetence, phlegm, hebetude, supineness, inertia, fag*, the dumps*, spring fever*; see also indifference 1.
Another word for lassitudenoun
A deficiency in mental and physical alertness and activity:dullness, hebetude, languidness, languor, leadenness, lethargy, listlessness, sluggishness, stupor, torpidity, torpor. See action
Lack of emotion or interest:apathy, disinterest, impassivity, incuriosity, incuriousness, indifference, insensibility, insensibleness, lethargy, listlessness, phlegm, stolidity, stolidness, unconcern, uninterest, unresponsiveness. See feelings