Word Study
lethargic
CIDE DICTIONARY
lethargic, a. [L. lethargicus, Gr. lhqargiko`s: cf. F. léthargique. See Lethargy.].
Pertaining to, affected with, or resembling, lethargy; morbidly drowsy; dull; heavy. [1913 Webster]
THESAURUS
lethargic
Laodicean, Olympian, aloof, anesthetized, apathetic, benumbed, blah, blase, bored, cataleptic, comatose, dead, debilitated, desensitized, detached, dilatory, disinterested, doped, dopey, dormant, dozy, dreamy, droopy, drowsy, drugged, drugged with sleep, dull, enervated, exanimate, exhausted, fagged out, faineant, fatigued, half asleep, heartless, heavy, heavy with sleep, heavy-eyed, hebetudinous, hopeless, idle, impassive, in a stupor, inactive, inanimate, indifferent, indolent, inert, insouciant, jaded, lackadaisical, laggard, languid, languorous, lazy, leaden, lifeless, listless, lumpish, moribund, napping, narcoleptic, narcose, narcotized, narcous, nodding, nonchalant, numb, numbed, oscitant, out of it, passive, phlegmatic, pluckless, pooped, resigned, sated, sedated, slack, sleep-drowned, sleep-drunk, sleep-filled, sleep-swollen, sleepful, sleepy, slothful, slow, sluggish, slumberous, slumbery, snoozy, somnolent, soporific, spiritless, spunkless, stagnant, stagnating, stoic, stolid, stretchy, stultified, stupefied, stupid, stuporose, stuporous, supine, tired, torpid, uncaring, unconcerned, uninterested, vegetable, vegetative, wan, weak, weary, withdrawn, world-weary, yawning, yawnyROGET THESAURUS
lethargic
Inactivity
N inactivity, inaction, inertness, obstinacy, lull, quiescence, rust, rustiness, idleness, remissness, sloth, indolence, indiligence, dawdling, ergophobia, otiosity, dullness, languor, segnity, segnitude, lentor, sluggishness, procrastination, torpor, torpidity, torpescence, stupor, somnolence, drowsiness, nodding, oscitation, oscitancy, pandiculation, hypnotism, lethargy, statuvolence heaviness, heavy eyelids, sleep, slumber, sound sleep, heavy sleep, balmy sleep, Morpheus, Somnus, coma, trance, ecstasis, dream, hibernation, nap, doze, snooze, siesta, wink of sleep, forty winks, snore, hypnology, dull work, pottering, relaxation, Castle of Indolence, lullaby, sedative, tranquilizer, hypnotic, sleeping pill, relaxant, anaesthetic, general anaesthetic, torpedo, idler, drone, droil, dawdle, mopus, do- little faineant, dummy, sleeping partner, afternoon farmer, truant, bummer, loafer, goldbrick, goldbicker, lounger, lazzarone, lubber, lubbard, slow coach (slow, ), opium eater, lotus eater, slug, lag, sluggard, slugabed, slumberer, dormouse, marmot, waiter on Providence, fruges consumere natus, inactive, motionless, unoccupied, unbusied, indolent, lazy, slothful, idle, lusk, remiss, slack, inert, torpid, sluggish, otiose, languid, supine, heavy, dull, leaden, lumpish, exanimate, soulless, listless, drony, dronish, lazy as Ludlam's dog, dilatory, laggard, lagging, slow, rusty, flagging, lackadaisical, maudlin, fiddle-faddle, pottering, shilly-shally, sleeping asleep, fast asleep, dead asleep, sound asleep, in a sound sleep, sound as a top, dormant, comatose, in the arms of Morpheus, in the lap of Morpheus, sleepy, sleepful, dozy, drowsy, somnolent, torpescent, lethargic, lethargical, somnifacient, statuvolent, statuvolic, heavy, heavy with sleep, napping, somnific, somniferous, soporous, soporific, soporiferous, hypnotic, balmy, dreamy, unawakened, unawakened, sedative, inactively, at leisure, the eyes begin to draw straws, bankrupt of life yet prodigal of ease, better 50 years of Europe than a cycle of Cathay, idly busy rolls their world away, the mystery of folded sleep, the timely dew of sleep, thou driftest gently down the tides of sleep, tired Nature's sweet restorer, balmy sleep.For further exploring for "lethargic" in Webster Dictionary Online