135 entries under silly topic. ×

11
foolish(adjective, wild, stupid, crazy)
11
psychotic(adjective, foolish, stupid, unstable)
10
crazed(adjective, wild, foolish, stupid)
10
daffy(adjective, informal, foolish, stupid)
10
idiotic(adjective, wild, foolish, stupid)
9
buggy(adjective, slang, foolish, crazy)
9
fatuous(adjective, wild, foolish, stupid)
9
fruity(adjective, slang, foolish, mad)
9
mental(adjective, foolish, stupid, crazy)
9
potty(adjective, wild, foolish, crazy)
9
round the bend(expression, adjective, idiom, foolish)
9
unhinged(adjective, stupid, crazy, mad)
8
dippy(adjective, light, stupid, mad)
8
goofy(adjective, light, stupid, crazy)
8
irrational(adjective, wild, foolish, stupid)
8
of unsound mind(expression, adjective, idiom, mad)
8
senseless(adjective, wild, foolish, stupid)
7
eccentric(adjective, keen, warm, wild)
7
maniacal(adjective, stupid, crazy, mad)
6
asinine(adjective, foolish, stupid, crazy)
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APASmart Define. (2015). batty thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/batty/thesaurus/synonyms
ChicagoSmart Define. 2015. "batty thesaurus" https://smartdefine.org/batty/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, batty thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/batty/thesaurus/synonyms>.
MLASmart Define. "batty thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/batty/thesaurus/synonyms>