76 entries under simple topic. ×

4
kooky(adjective, weak, silly, foolish)
4
ludicrous(adjective, dull, weak, silly)
4
ridiculous(adjective, weak, silly, foolish)
4
unintellectual(adjective, slow, stupid, boring)
4
unreasonable(adjective, weak, careless, silly)
4
zany(adjective, weak, informal, silly)
3
addled(adjective, slow, stupid, boring)
3
dim(adjective, dull, slow, boring)
3
dopey(adjective, dull, silly, foolish)
3
ill-advised(adjective, dull, weak, careless)
3
shallow(adjective, slow, silly, stupid)
3
simple-minded(adjective, slow, silly, foolish)
3
slow(adjective, dull, silly, foolish)
3
stolid(adjective, dull, slow, foolish)
3
weak(silly, foolish, thoughtless, unwise)
2
besotted(adjective, slow, stupid, boring)
2
deranged(silly, foolish, stupid, unsound)
2
feebleminded(adjective, weak, silly, foolish)
2
imprudent(weak, careless, silly, foolish)
2
indiscreet(dull, weak, careless, silly)
11 years ago|20k views|share |citing 
APASmart Define. (2015). witless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/witless/thesaurus/synonyms
ChicagoSmart Define. 2015. "witless thesaurus" https://smartdefine.org/witless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, witless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/witless/thesaurus/synonyms>.
MLASmart Define. "witless thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/witless/thesaurus/synonyms>