5
brusque(adjective, mean, severe, sharp, ironic)
5
crusty(adjective, irritable)
5
cynical(adjective, mean, evil, sharp, nasty)
5
gruff(adjective, severe)
5
irascible(adjective, mean, sharp, nasty, unfriendly)
5
peevish(adjective, irritable)
5
penetrating(adjective, sharp, harsh, cold, critical)
5
petulant(adjective, speech, unfriendly, irritable, bitter)
5
rough(sharp, rough, harsh, sour, acid)
5
sulfurous
5
sulphurous
5
tangy(adjective, taste, sharp, harsh, unpleasant)
5
vinegary(adjective, sharp, harsh, unpleasant, lively)
4
abrupt(adjective, severe)
4
acidulent
4
antagonistic(adjective, spiteful, resentful, venomous)
4
choleric
4
churlish(adjective, speech, unfriendly, irritable, bitter)
4
cranky(adjective, speech, unfriendly, irritable, bitter)
4
critical(adjective, severe, sharp, unpleasant, bitter)
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APASmart Define. (2015). acerbic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/acerbic/thesaurus/synonyms
ChicagoSmart Define. 2015. "acerbic thesaurus" https://smartdefine.org/acerbic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, acerbic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/acerbic/thesaurus/synonyms>.
MLASmart Define. "acerbic thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/acerbic/thesaurus/synonyms>