adjective
spiritless, without energy
Synonyms: absent, abstracted, apathetic, blah, bored, careless, dormant, dreamy, drowsy, dull, easygoing, energyless, enervated, faint, heavy, heedless, impassive, inanimate, inattentive, indifferent, indolent, inert, insouciant, lackadaisical, lagging, laid-back, languid, languishing, languorous, leaden, lethargic, lifeless, limp, lukewarm, lymphatic, mopish, neutral, out of it, passive, phlegmatic, slack, sleepy, slow, sluggish, stupid, supine, thoughtless, torpid, uninterested, vacant
Antonyms: active, alert, attentive, energetic, lively, untired