sluggish

1 moving or proceeding at less than the normal, desirable, or required speed the sluggish pace of the project is worrisome Synonyms crawling, creeping, dallying, dawdling, dilatory, dillydallying, dragging, laggard, lagging, languid, leisurely, poking, poky (or pokey), slow, snaillike, snail-paced, tardy, unhurriedRelated Words deliberate, measured; inactive, inert, lethargic, loafing, lounging; lingering, loitering, tarrying; ambling, heavy-footed, inching, plodding, shuffling, slow-footed; strolling; decelerating, slowing; filibustering, procrastinating, stallingNear Antonyms expeditious, prompt, ready; accelerated, hastened, quickened; hurried, rushedAntonyms barreling, bolting, breakneck, breathless, brisk, careering, dizzy, fast, fleet, flying, hasty, hurrying, lightning, meteoric, quick, racing, rapid, rocketing, running, rushing, scooting, scudding, scurrying, snappy, speeding, speedy, swift, warp-speed, whirling, whirlwind, whisking, zipping

2 slow to move or act reptiles are naturally sluggish at low temperatures Synonyms dull, inert, lethargic, quiescent, sleepy, inactive, torpidRelated Words ambitionless, apathetic, indolent, languorous, lazy, lazyish, listless, shiftless, slack, slothful, sluggard, sluggardly; dormant, inanimate, motionless, resting, sedentary, static, still; dead; dopey (also dopy), drugged; asleep, drowsy, somnambulant; catatonic, comatoseNear Antonyms busy, engaged, occupied, working; animated, bouncing, dynamic, energetic, kinetic, lively, peppy, perky, spirited, sprightly, springy, vigorous, vital, vivacious, zippy; assiduous, diligent, hardworking, industrious, sedulousAntonyms active