106 entries under silly topic. ×

8
nutty(adjective, weak, simple, foolish)
8
thoughtless(adjective, careless, indifferent, foolish)
7
daffy(adjective, weak, simple, slow)
7
imbecile(adjective, dull, simple, foolish)
7
inane(adjective, dull, simple, slow, careless)
7
insane(adjective, weak, simple, foolish)
7
insensate(adjective, dull, simple, ability, slow)
7
obtuse(adjective, dull, simple, slow, careless)
7
thick(adjective, dull, simple, slow)
6
dippy(adjective, weak, simple, foolish)
6
half-baked(adjective, dull, weak, simple, slow)
6
half-witted(adjective, dull, weak, simple, slow)
6
soft(adjective, stupid, green, fat)
6
unthinking(adjective, dull, simple, slow, careless)
5
doltish(adjective, dull, weak, simple, slow)
5
harebrained(adjective, weak, simple, foolish)
5
unaware(adjective, foolish, innocent, senseless)
4
birdbrained(adjective, foolish, innocent, vague)
4
boneheaded(adjective, impulsive, impractical, unintelligent)
4
dense(adjective, dull, simple, slow)
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APASmart Define. (2015). witless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/witless/thesaurus/synonyms
ChicagoSmart Define. 2015. "witless thesaurus" https://smartdefine.org/witless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, witless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/witless/thesaurus/synonyms>.
MLASmart Define. "witless thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/witless/thesaurus/synonyms>