Synonyms of bitter in English:

bitter


See definition of bitter

adjective

1‘very bitter coffee’

SYNONYMS
sharp, acid, acidic, pungent, acrid, tart, sour, biting, harsh, unsweetened, vinegary, acetous
North American acerb
archaic, technical acerbic
ANTONYMS

sweet

2‘a bitter old woman’

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

magnanimous, content

3‘today's decision has come as a bitter blow’

SYNONYMS
painful, unpleasant, disagreeable, nasty, cruel, awful, distressing, disquieting, disturbing, upsetting, harrowing, heartbreaking, heart-rending, agonizing, unhappy, miserable, wretched, sad, poignant, grievous, traumatic, tragic, chilling, mortifying, galling, vexatious
rare distressful
ANTONYMS

welcome

4‘a bitter north wind’

SYNONYMS
intensely cold, bitterly cold, freezing, icy, icy-cold, arctic, glacial, frosty, frigid, chilly
piercing, penetrating, biting, nipping, stinging, sharp, keen, raw, harsh, wintry
informal nippy
British informal parky
literary chill
ANTONYMS

warm, balmy

5‘a bitter row broke out’

SYNONYMS
acrimonious, virulent, angry, rancorous, spiteful, vindictive, vicious, vitriolic, savage, hostile, ferocious, scathing, antagonistic, hate-filled, venomous, poisonous, acrid, bilious, nasty, ill-natured, malign, choleric
ANTONYMS

amicable