104 entries under foolish topic. ×

36
capricious(adjective, change, continue, cross, unusual)
25
inconsistent(adjective, change, continue, passionate, loose)
18
eccentric(adjective, character, unusual, wild, strange)
17
odd(adjective, unusual, careless, wild, strange)
14
crazy(adjective, beat, character, unusual, wild)
9
fantastic(adjective, change, continue, unusual, strange)
7
irresponsible(adjective, wild, silly, unstable)
7
wacky(adjective, unusual, wild, strange, silly)
6
nutty(adjective, unusual, wild, strange, silly)
5
demented(adjective, unusual, wild, strange, silly)
5
irrational(adjective, weak, unusual, wild, strange)
5
screwy(adjective, wild, silly, crazy)
4
incongruous(adjective, wrong, stupid, uncertain)
4
nuts(adjective, wild, silly, crazy)
4
screwball(adjective, slang, silly, mad)
3
deranged(adjective, wild, silly, crazy)
3
insane(adjective, wild, strange, silly)
3
loose(careless, stupid, casual, senseless)
3
mad(adjective, unusual, wild, strange, lively)
2
bats in the belfry(expression, idiom, silly, mad)
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APASmart Define. (2016). erratic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/erratic/thesaurus/synonyms
ChicagoSmart Define. 2016. "erratic thesaurus" https://smartdefine.org/erratic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, erratic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/erratic/thesaurus/synonyms>.
MLASmart Define. "erratic thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/erratic/thesaurus/synonyms>