Synonyms|139Antonyms|57|Broader|1Narrower|0Related|260

36 entries under caustic topic. ×

10
acid(noun, adjective, attack, respect, severe)
8
acrid(adjective, attack, respect, sharp, unpleasant)
8
sharp(adjective, attack, respect, severe, unpleasant)
8
tart(noun, adjective, sharp, unpleasant, bitter)
8
biting(adjective, attack, respect, sharp, unpleasant)
7
bitter(adjective, severe, sharp, unpleasant, sour)
7
stinging(adjective, attack, respect, sharp, unpleasant)
6
acerb(adjective, sharp, harsh, unpleasant, bitter)
6
astringent(adjective, attack, respect, sharp, unpleasant)
6
cutting(adjective, attack, respect, sharp, unpleasant)
6
pungent(adjective, attack, respect, sharp, unpleasant)
6
vinegary(adjective, sharp, unpleasant, bitter, sour)
5
acetous(adjective, sharp, unpleasant, bitter, sour)
3
keen(adjective, sharp, unpleasant, bitter, sour)
3
piquant(adjective, sharp, unpleasant, bitter, sour)
3
unripe(adjective, sharp, unpleasant, bitter, sour)
2
acetic(adjective, sharp, unpleasant, bitter, sour)
2
acidulated(adjective, sharp, unpleasant, bitter, sour)
2
rancid(adjective, sharp, unpleasant, bitter, sour)
2
sourish(adjective, sharp, unpleasant, bitter, sour)
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APASmart Define. (2015). acidic thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/acidic/thesaurus/synonyms
ChicagoSmart Define. 2015. "acidic thesaurus" https://smartdefine.org/acidic/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, acidic thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/acidic/thesaurus/synonyms>.
MLASmart Define. "acidic thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/acidic/thesaurus/synonyms>