Synonyms:
- acerb,
- acerbate,
- acescent,
- acetose,
- acid,
- acidic,
- acidulent,
- acidulous,
- acrid,
- acrimonious,
- amaroidal,
- asperous,
- astringent,
- biting,
- bitter,
- bitter as gall,
- burning,
- caustic,
- choleric,
- coarse,
- corroding,
- corrosive,
- crab,
- crabbed,
- cutting,
- dry,
- embittered,
- escharotic,
- green,
- hard,
- harsh,
- incisive,
- irritating,
- keen,
- mordacious,
- mordant,
- nose-tickling,
- penetrating,
- pickled,
- piercing,
- piquant,
- poignant,
- pungent,
- rancorous,
- rankled,
- resentful,
- resenting,
- rough,
- scathing,
- scorching,
- sec,
- severe,
- sharp,
- sore,
- sour,
- sour as vinegar,
- soured,
- sourish,
- splenetic,
- stabbing,
- stewing,
- stinging,
- tart,
- tartish,
- trenchant,
- unripe,
- unsweet,
- unsweetened,
- vinegarish,
- vinegary,
- virulent,
- vitriolic,
- withering