118 entries under ill topic. ×

25
maniacal(adjective, characteristic, wild, silly, foolish)
23
frenzied(adjective, characteristic, violent, wild, silly)
23
screwy(adjective, characteristic, slang, wild, silly)
23
unhinged(adjective, upset, characteristic, silly, foolish)
21
senseless(adjective, characteristic, silly, foolish, stupid)
21
preposterous(adjective, characteristic, weak, simple, wrong)
20
of unsound mind(expression, adjective, idiom, characteristic, silly)
19
mental(adjective, characteristic, simple, silly, foolish)
18
irresponsible(adjective, characteristic, wrong, wild, strange)
18
raving(adjective, upset, characteristic, wrong, wild)
16
moonstruck(adjective, characteristic, silly, foolish, stupid)
15
unbalanced(adjective, upset, false, wild, silly)
15
rabid(adjective, characteristic, violent, wild, silly)
15
raging(adjective, characteristic, violent, wild, silly)
14
frantic(adjective, upset, violent, wild, violence)
13
psychopathic(adjective, characteristic, silly, foolish, stupid)
13
bizarre(adjective, characteristic, wild, strange, silly)
13
impractical(adjective, characteristic, wrong, wild, silly)
13
unsettled(adjective, characteristic, foolish, stupid, hot)
12
delirious(adjective, upset, wrong, wild, silly)
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APASmart Define. (2015). insane thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/insane/thesaurus/synonyms
ChicagoSmart Define. 2015. "insane thesaurus" https://smartdefine.org/insane/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, insane thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/insane/thesaurus/synonyms>.
MLASmart Define. "insane thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/insane/thesaurus/synonyms>