Bitter

Synonyms: Sharp, acidic, acrid, sour, harsh, vinegary, acerb, acid, pungent, tart, biting, unsweetened, acetous, and acerbic.

Synonyms: Resentful, aggrieved, disgruntled, grudge-bearing, begrudging, rancorous, spiteful, ill-disposed, sour, morose, peevish, embittered, dissatisfied, discontented, grudging, indignant, splenetic, jaundiced, sullen, churlish, petulant, and with a chip on one's shoulder.

Synonyms: Acrimonious, angry, spiteful, vicious, savage, ferocious, antagonistic, venomous, acrid, nasty, malign, virulent, rancorous, vindictive, vitriolic, hostile, scathing, hate-filled, poisonous, bilious, ill-natured, and choleric.

Synonyms: Painful, disagreeable, cruel, distressing, disturbing, harrowing, heart-rending, unhappy, wretched, poignant, traumatic, chilling, galling, distressful, unpleasant, nasty, awful, disquieting, upsetting, heartbreaking, agonizing, miserable, sad, grievous, tragic, mortifying, and vexatious.

Synonyms: Intensely cold, freezing, icy-cold, glacial, frigid, piercing, biting, stinging, keen, harsh, nippy, Baltic, bitterly cold, icy, arctic, frosty, chilly, penetrating, nipping, sharp, raw, wintry, parky, and chill.