| Main Entry: | |
| Part of Speech: | noun |
| Definition: | lethargy |
| Synonyms: | apathy, dullness, fatigue, idleness, inaction, inactivity, laziness, listlessness, sluggishness, tiredness, torpor, weakness |
| Main Entry: | ennui |
| Part of Speech: | noun |
| Definition: | boredom |
| Synonyms: | apathy, blahs, blues, dejection, depression, dissatisfaction, doldrums, dumps, fatigue, ho hums, lack of interest, languidness, languor, lassitude, listlessness, melancholy, sadness, satiety, spiritlessness, surfeit, tedium, weariness, yawn |
| Antonyms: | energy, enthusiasm, excitement, liveliness, vigor |
| Main Entry: | fatigue |
| Part of Speech: | noun |
| Definition: | tiredness |
| Synonyms: | brain fag, burnout, debility, dullness, enervation, ennui, exhaustion, faintness, fatigation, feebleness, heaviness, languor, lassitude, lethargy, listlessness, overtiredness, weakness, weariness |
| Antonyms: | energy, freshness, liveliness, spirit, vigor |
| Main Entry: | feebleness |
| Part of Speech: | noun |
| Definition: | lack of strength; ineffectiveness |
| Synonyms: | debility, decrepitude, delicacy, disease, effeteness, enervation, etiolation, exhaustion, flimsiness, frailness, frailty, inability, inadequacy, incapacity, incompetence, ineffectualness, infirmity, infirmness, insignificance, insufficiency, lameness, languor, lassitude, malaise, senility, sickliness, unhealthiness, weakness |
| Antonyms: | ability, effectiveness, health, heartiness, power, soundness, strength |
| Main Entry: | inertia |
| Part of Speech: | noun |
| Definition: | disinclination to move; lifelessness |
| Synonyms: | apathy, deadness, drowsiness, dullness, idleness, immobility, immobilization, inactivity, indolence, languor, lassitude, laziness, lethargy, listlessness, oscitancy, paralysis, passivity, sloth, sluggishness, stillness, stupor, torpidity, torpor, unresponsiveness |
| Antonyms: | activity, animation, life, liveliness, moving |
| Main Entry: | lassitude |
| Part of Speech: | noun |
| Definition: | lethargy |
| Synonyms: | apathy, dullness, exhaustion, fatigue, idleness, inaction, inactivity, languor, laziness, listlessness, sleepiness, sluggishness, tiredness, torpor, weakness, weariness |
| Main Entry: | lethargy |
| Part of Speech: | noun |
| Definition: | laziness, sluggishness |
| Synonyms: | apathy, coma, disinterest, disregard, drowsiness, dullness, hebetude, heedlessness, idleness, impassivity, inaction, inactivity, inanition, indifference, indolence, inertia, inertness, insouciance, languor, lassitude, listlessness, passiveness, phlegm, sleep, sleepiness, sloth, slowness, slumber, stupor, supineness, torpidity, torpidness, torpor, unconcern, unmindfulness |
| Antonyms: | activity, busyness, energy, life, liveliness, vigor, vitality, vivaciousness, vivacity |
| Main Entry: | slumber |
| Part of Speech: | noun |
| Definition: | sleep |
| Synonyms: | coma, dormancy, doze, drowse, forty winks, inactivity, languor, lethargy, nap, repose, rest, sack time, shut-eye, snooze, stupor, torpor |
| Notes: | to sloom is to sleep heavily and soundly; to slumber is to sleep lightly |
| Antonyms: | awakening, consciousness, wakefulness |
| Main Entry: | stupor |
| Part of Speech: | noun |
| Definition: | daze, unconsciousness |
| Synonyms: | amazement, anesthesia, apathy, asphyxia, bewilderment, coma, dullness, fainting, hebetude, hypnosis, inertia, inertness, insensibility, languor, lassitude, lethargy, narcosis, numbness, petrifaction, sleep, slumber, somnolence, sopor, stupefaction, suspended animation, swoon, swooning, torpor, trance |
| Antonyms: | consciousness, sensibility |