375 entries under adjective topic. ×

4
crisp(severe, sharp, cold, unkind)
4
cross(mean, keen, sharp, harsh)
4
difficult(sickness, ache, anguishes)
4
embittered(severe, nasty, hostile, resentful)
4
hateful(mean, severe, sharp, nasty)
4
hostile(mean, severe, evil, sharp)
4
intense(strong, severe, sharp, nasty)
4
irritable
4
painful(hard, sharp, tender, raw)
4
prickly(irritable, painful, burning, stinging)
4
rancorous(severe, nasty, speech, hostile)
4
saddening(sickness, ache, anguishes)
4
stern
4
sullen(mean, severe, sharp, nasty)
4
touchy(keen, sharp, lively, irritable)
4
truculent(attack, respect, hostile, hateful)
3
bellicose(mean, sharp, harsh, cross)
3
bleak
3
blunt
3
brisk
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APASmart Define. (2015). caustic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/caustic/thesaurus/synonyms
ChicagoSmart Define. 2015. "caustic thesaurus" https://smartdefine.org/caustic/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, caustic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/caustic/thesaurus/synonyms>.
MLASmart Define. "caustic thesaurus" 21 July 2015. Web. 25 September 2026. <https://smartdefine.org/caustic/thesaurus/synonyms>