sourness (n.)
- acerbity
- acidity
- acidulousness
- acridity
- acridness
- acrimony
- anger
- animosity
- animus
- asperity
- astringence
- astringency
- atonalism
- atonality
- bile
- biliousness
- bitterness
- cacophony
- choler
- clinker
- disappointment
- discontent
- discontentedness
- discontentment
- discord
- discordance
- disgruntlement
- disharmony
- dissatisfaction
- dissonance
- edge
- envy
- feud
- flatness
- gall
- harshness
- inharmoniousness
- keenness
- peevishness
- petulance
- piquancy
- poignancy
- pungency
- querulousness
- rancor
- rebelliousness
- resentment
- restiveness
- restlessness
- roughness
- severity
- sharpness
- soreness
- spleen
- stridor
- sulkiness
- tartness
- trenchancy
- uneasiness
- unhappiness
- vendetta
- venom
- virulence
- vitriol
- wolf
