157 entries under silly topic. ×

5
sappy(adjective, strange, stupid, senseless)
5
strange(adjective, unusual, wild, foolish)
5
thoughtless
5
unsound(adjective, wrong, foolish, stupid)
4
bizarre(adjective, wild, strange, crazy)
4
delirious(adjective, wrong, wild, enthusiastic)
4
harebrained(adjective, weak, simple, wild)
4
off the wall(expression, adjective, idiom, light, unusual)
4
outrageous(adjective, foolish, unwise, preposterous)
4
psycho(adjective, foolish, crazy, mad)
4
unreasonable(adjective, weak, simple, wrong)
3
bedlamite(adjective, simple, foolish, crazy)
3
flipped(adjective, wild, enthusiastic, foolish)
3
frenzied(adjective, wrong, foolish, stupid)
3
half-witted(weak, simple, foolish, thoughtless)
3
illogical(adjective, wrong, foolish, sense)
3
irresponsible(foolish, stupid, unwise)
3
mindless(adjective, wrong, foolish, stupid)
3
reckless(thoughtless, unwise)
3
unwise(adjective, weak, simple, wrong, wild)
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APASmart Define. (2015). nutty thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nutty/thesaurus/synonyms
ChicagoSmart Define. 2015. "nutty thesaurus" https://smartdefine.org/nutty/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, nutty thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nutty/thesaurus/synonyms>.
MLASmart Define. "nutty thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/nutty/thesaurus/synonyms>