5
critical
5
discontent(adjective, irritation, annoyance, irritability, resentful)
5
dismal
5
displeasing(adjective, pain, offensive, unpleasant, disgusting)
5
disturbing(adjective, hard, moving, severe, sharp)
5
doleful
5
envious(adjective, set, mean, nasty, fixed)
5
fresh
5
heartbroken
5
huffed(adjective, irritation, annoyance, discontent, irritability)
5
hurting(adjective, pain)
5
hyperborean(adjective, cool, severe, keen, sharp)
5
incensed(adjective, mad, irritation, annoyance, annoyed)
5
invidious(adjective, nasty, terrible, disgusting, vicious)
5
irascible(adjective, mean, sharp, nasty, mad)
5
ireful(adjective, mad, resentment, unfriendly, irritation)
5
lugubrious
5
malign(adjective, mean, nasty, terrible, disgusting)
5
merciless(adjective, evil, nasty, harsh, unpleasant)
5
mordacious(adjective, malevolence, biting)
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APASmart Define. (2016). bitter thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/bitter/thesaurus/synonyms
ChicagoSmart Define. 2016. "bitter thesaurus" https://smartdefine.org/bitter/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, bitter thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/bitter/thesaurus/synonyms>.
MLASmart Define. "bitter thesaurus" 22 March 2016. Web. 23 September 2026. <https://smartdefine.org/bitter/thesaurus/synonyms>