281 entries under foolish topic. ×

5
sentimental(adjective, soft, sweet, emotional)
5
tomfool(noun, adjective, knowledge, ability, fool)
5
unthinking(adjective, wrong, slight, careless)
5
cockeyed(adjective, knowledge, ability, informal)
5
feeble-minded(adjective, stupid, vague, impulsive)
5
ill-advised(adjective, weak, simple, careless)
5
ill-considered(adjective, weak, simple, stupid)
5
lunatic(adjective, weak, simple, knowledge, ability)
5
maudlin(soft, sweet, emotional, wet)
5
sheepheaded(adjective, characteristic, absurd, stupidity)
4
birdbrained(adjective, slang, ability, stupid)
4
simple-minded(adjective, stupid, green, fat)
4
barmy(adjective, crazy, mad, trivial)
4
cracked(adjective, wild, stupid, crazy)
4
credulous(adjective, stupid, innocent, green)
4
demented(adjective, wrong, wild, stupid)
4
green(adjective, stupid, innocent, thick)
4
heedless(adjective, careless, crazy, senseless)
4
incongruous(adjective, stupid, insignificant, unreasonable)
4
inconsequential(adjective, wrong, slight, small)
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APASmart Define. (2016). silly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/silly/thesaurus/synonyms
ChicagoSmart Define. 2016. "silly thesaurus" https://smartdefine.org/silly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, silly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/silly/thesaurus/synonyms>.
MLASmart Define. "silly thesaurus" 20 January 2016. Web. 23 September 2026. <https://smartdefine.org/silly/thesaurus/synonyms>