109 entries under bitter topic. ×

5
implacable(adjective, mean, evil, nasty, harsh)
5
sore(adjective, severe, nasty, hostile)
5
splenetic(adjective, mean, speech, unfriendly)
4
caustic(adjective, severe, nasty, speech, hostile)
3
acerbic(speech, unfriendly, belligerent, spiteful)
3
acid(adjective, speech, unfriendly, belligerent)
3
harsh(adjective, mean, tough, evil, nasty)
3
unfriendly(adjective, mean, nasty, antagonistic)
2
barbarous(adjective, mean, evil, nasty, harsh)
2
belligerent(adjective, mean, nasty, speech, hostile)
2
bloodthirsty(adjective, evil, nasty, harsh, violent)
2
brutish(adjective, evil, nasty, harsh, violent)
2
callous(adjective, mean, tough, evil, nasty)
2
churlish(adjective, speech, unfriendly, belligerent)
2
cold-blooded(adjective, mean, tough, evil, nasty)
2
fierce(adjective, mean, severe, evil, nasty)
2
merciless(adjective, mean, evil, nasty, harsh)
2
offended(adjective, angry, malicious, resentful)
2
vitriolic(adjective, mean, severe, nasty, hostile)
1
adverse(adjective, mean, nasty, unfriendly, hateful)
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APASmart Define. (2015). rancorous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/rancorous/thesaurus/synonyms
ChicagoSmart Define. 2015. "rancorous thesaurus" https://smartdefine.org/rancorous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, rancorous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/rancorous/thesaurus/synonyms>.
MLASmart Define. "rancorous thesaurus" 17 July 2015. Web. 28 September 2026. <https://smartdefine.org/rancorous/thesaurus/synonyms>