150 entries under severe topic. ×

82
sharp(adjective, feeling, understanding, strong, cool)
55
acute(adjective, feeling, understanding, strong, great)
51
eager(adjective, clear, strong, kind, tough)
38
cutting(verb, adjective, feeling, strong, cool)
33
zealous(adjective, clear, strong, kind, tough)
33
intense(adjective, clear, strong, cool, great)
33
penetrating(adjective, understanding, strong, cool)
32
biting(adjective, strong, cool, sharp)
29
intelligent(adjective, smart, sharp, perceptive, clever)
28
perceptive(adjective, clear, understanding, strong, smooth)
26
fine(adjective, good, understanding, strong, cool)
22
bitter(adjective, strong, cool, sharp)
20
piercing(adjective, feeling, strong, cool)
20
severe(adjective, clear, strong, cool, tough)
19
fervent(adjective, clear, strong, tough, desire)
18
caustic(adjective, feeling, strong, sharp)
17
cool(adjective, good, great, pleasant)
17
fervid(adjective, clear, strong, tough)
17
pointed(adjective, strong, sharp, fine)
16
strong(adjective, feeling, great, sharp)
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APASmart Define. (2016). keen thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/keen/thesaurus/synonyms
ChicagoSmart Define. 2016. "keen thesaurus" https://smartdefine.org/keen/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, keen thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/keen/thesaurus/synonyms>.
MLASmart Define. "keen thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/keen/thesaurus/synonyms>