60 entries under deep topic. ×

35
acid(noun, adjective, mean, attack, strong)
33
sharp(adjective, mean, feeling, attack, strong)
24
cutting(verb, adjective, mean, feeling, attack)
21
trenchant(adjective, mean, feeling, attack, strong)
18
keen(adjective, feeling, strong, severe, sharp)
18
tart(noun, adjective, strong, severe, sharp)
17
incisive(adjective, feeling, strong, hard, keen)
13
sardonic(adjective, mean, strong, severe, evil)
10
piercing(adjective, feeling, strong, sharp, nasty)
9
acute(adjective, feeling, strong, severe, keen)
6
extreme(adjective, strong, harsh, tender, intense)
6
satirical(adjective, close, mean, strong, severe)
5
penetrating(adjective, strong, hard, severe, sharp)
4
intense(adjective, strong, severe, sharp, nasty)
3
pointed(adjective, strong, severe, sharp, nasty)
2
edged(adjective, strong, sharp, intense, powerful)
2
fierce(adjective, mean, strong, severe, sharp)
2
strong(adjective, feeling, severe, sharp, intense)
2
vehement(adjective, strong, intense, powerful)
1
alert(adjective, strong, keen, sharp, intense)
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APASmart Define. (2015). caustic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/caustic/thesaurus/synonyms
ChicagoSmart Define. 2015. "caustic thesaurus" https://smartdefine.org/caustic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, caustic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/caustic/thesaurus/synonyms>.
MLASmart Define. "caustic thesaurus" 21 July 2015. Web. 22 September 2026. <https://smartdefine.org/caustic/thesaurus/synonyms>