236 entries under silly topic. ×

2
ill-conceived(foolish, unwise)
2
impracticable(weak, foolish, idle, useless)
2
impractical(adjective, weak, foolish, unreasonable)
2
inappropriate(adjective, dull, simple, flat, slow)
2
ineffective(adjective, insignificant, idle, useless)
2
ineffectual(adjective, insignificant, idle, useless)
2
insensate(adjective, dull, simple, slow)
2
kooky(weak, simple, foolish, crazy)
2
lamebrained(dull, simple, careless, limited)
2
madcap(adjective, crazy, vague, impulsive)
2
maniacal(adjective, mind, think, foolish)
2
nitwitted(adjective, simple, foolish, crazy)
2
potty(adjective, wild, foolish, crazy)
2
unbalanced(foolish, unwise)
2
unproductive(adjective, insignificant, idle, useless)
2
weird(adjective, foolish, unwise)
2
worthless(adjective, insignificant, idle, useless)
1
around in circles(expression, adjective, idiom, insignificant)
1
bonkers(adjective, foolish, crazy, mad)
1
brash(sharp, rough, careless, crazy)
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APASmart Define. (2016). stupid thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stupid/thesaurus/synonyms
ChicagoSmart Define. 2016. "stupid thesaurus" https://smartdefine.org/stupid/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, stupid thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stupid/thesaurus/synonyms>.
MLASmart Define. "stupid thesaurus" 2 April 2016. Web. 25 September 2026. <https://smartdefine.org/stupid/thesaurus/synonyms>