2
keenness
2
lamentation(noun, worry, concern, shame, disappointment)
2
melancholy(noun, depression, sadness, gloom, misery)
2
mournfulness(melancholy, sadness, somberness)
2
nippiness
2
offense(noun, hurt, passion, rise, dislike)
2
peevishness(noun, difficulty, speech, sharpness, severity)
2
poisonousness
2
quarrelsomeness(noun, enmity)
2
raciness(noun, sharpness)
2
rancorousness(noun, state, quality, hurt, passion)
2
rankling
2
regretfulness(noun, worry, concern, shame, disappointment)
2
repugnance(noun, hatred, hate, hostility, antagonism)
2
repulsion(noun, hate, hostility, antagonism, disgust)
2
revenge(noun, hate, hostility, antagonism, disgust)
2
rigour
2
sadness(noun, distress, sorrow, depression, melancholy)
2
sapor(noun, taste, extract, essence, sharpness)
2
sting(noun, sharpness, acerbity, acidity, mordancy)
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APASmart Define. (2015). bitterness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/bitterness/thesaurus/synonyms
ChicagoSmart Define. 2015. "bitterness thesaurus" https://smartdefine.org/bitterness/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, bitterness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/bitterness/thesaurus/synonyms>.
MLASmart Define. "bitterness thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/bitterness/thesaurus/synonyms>