acedia, aloofness, angst, anguish, anxiety, apathy, boredness, carelessness, cheerlessness, detachment, discomfort, discomposure, discontent, disgust, disinterest, disinterestedness, dislike, dispiritedness, displeasure, disquiet, dissatisfaction, distaste, doldrums, dread, dreariness, drowsiness, dullness, emptiness, enervation, ennui, existential woe, fatigue, fed-upness, flatness, grimness, heaviness, hebetude, heedlessness, impassiveness, impassivity, inanimation, incuriosity, incuriousness, indifference, indifferentism, indifferentness, inquietude, insouciance, intellectual inertia, jadedness, joylessness, lack of interest, lack of pleasure, lackadaisicalness, languidness, languishment, languor, languorousness, lassitude, lenitude, lentor, lethargy, life-weariness, lifelessness, listlessness, malaise, melancholy, monotony, nausea, nongratification, nonsatisfaction, oscitancy, painfulness, passivity, phlegm, regardlessness, satedness, satiation, satiety, savorlessness, sleepiness, sloth, slothfulness, slowness, sluggishness, somnolence, spleen, staleness, stolidity, stupefaction, stupor, supineness, taedium vitae, tastelessness, tediousness, tedium, tiredness, torpidity, torpidness, torpitude, torpor, uncomfortableness, unconcern, unease, uneasiness, unhappiness, uninquisitiveness, uninterestedness, unmindfulness, unpleasure, unsatisfaction, vexation of spirit, wearifulness, weariness, withdrawal, world-weariness, yawn