Synonyms:
- acerb,
- acerbate,
- acerbic,
- acescent,
- bearish,
- bilious,
- bitter,
- cankered,
- choleric,
- crab,
- crabbed,
- cranky,
- cross-grained,
- crotchety,
- dry,
- dyspeptic,
- embittered,
- green,
- jaundiced,
- ornery,
- pickled,
- pungent,
- sec,
- sour,
- sour as vinegar,
- sour-tempered,
- soured,
- sourish,
- tart,
- tartish,
- unripe,
- unsweet,
- unsweetened,
- vinegary,
- waspish