animosity, rancor, resentment, acrimony, hatred, anger, hostility, feelings, antagonism, ambivalence, unhappiness, frustration, distrust, mistrust, sadness, anguish, cynicism, despair, disillusionment, sorrow, enmity, sourness, disgruntlement, loathing, jealousy, negativity, angst, ugliness, despondency, vindictiveness, antipathy, discord, recrimination, distaste, weariness, disappointment, detestation, disgust, discontentment, resentfulness, disaffection, unpleasantness, impatience, hopelessness, heartache, disenchantment, embitterment, heartbreak, disunity, animus, nastiness, exasperation, disquietude, affection, vitriol, defensiveness, dissatisfaction, disharmony, sweetness, disdain, longing, misgiving, despondence, grief, emotion, condescension, meanness, strife, unease, negativism, intolerance, dissension, spitefulness, indignation, selfishness, estrangement, grudges, anxiety, vengefulness, emptiness, mournfulness, alienation, pessimism, wistfulness, latent hostility, peevishness, disquiet, smugness, uneasiness, survivor guilt, haughtiness, contentiousness, factionalism, elation, frostiness, tension, apathy, grumpiness, nostalgia, fury, remorse, regret, vexation, fierceness, poignancy, dismay, harshness, horror, perplexity, rancour, vehemence, annoyance, chagrin, nervousness, trepidation, anticipated, coincident, commensurate, concomitant, conjoint, consequent, consequential, corresponding, cyclophosphamide, cyclosporine, delay, disproportional, disproportionate, dramatic, erythroid, fear, feedback, hallux

acerbity, acridity, acridness, enviousness, envy, grievance, grudge, heartburning, huffishness, pungency, score, sharpness, sulkiness, the green-eyed monster

acerbity, acridity, acridness, bittersweet, hard, semisweet

disagreeableness, gustatory perception, gustatory sensation, ill will, taste, taste perception, taste property, taste sensation

bitter, gall, jaundice