Heaviness(n.) The state or quality of being heavy in its various senses; weight; sadness; sluggishness; oppression; thickness.
Thesaurus Entries
accidia, aloofness, anger, apathy, ataraxia, ataraxy, avarice, avaritia, benumbedness, blah, blahs, boredom, carelessness, casualness, cave of Trophonius, cave of despair, comatoseness, deadly sin, despair, desperateness, desperation, despondency, detachment, disconsolateness, disinterest, dispassion, disregard, disregardfulness, drowsiness, dullness, easygoingness, enervation, ennui, envy, fatigue, forlornness, gluttony, greed, gula, heartlessness, heaviness, hebetude, heedlessness, hopelessness, inanimation, inappetence, inattention, incuriosity, indifference, indiscrimination, inexcitability, insouciance, invidia, ira, jadedness, lack of affect, lack of appetite, lackadaisicalness, languidness, languishment, languor, languorousness, lassitude, lenitude, lentor, lethargicalness, lethargy, lifelessness, listlessness, lust, luxuria, mindlessness, negligence, no exit, no way, no way out, nonchalance, numbness, oscitancy, passiveness, passivity, phlegm, phlegmaticalness, phlegmaticness, plucklessness, pococurantism, pride, recklessness, regardlessness, resignation, resignedness, satedness, sleepiness, sloth, slothfulness, slowness, sluggishness, somnolence, sopor, soporifousness, spiritlessness, spunklessness, stupefaction, stupor, superbia, supineness, torpidity, torpidness, torpitude, torpor, unanxiousness, unconcern, unmindfulness, unsolicitousness, weariness, withdrawnness, world-weariness, wrath