3
unsuspicious
3
unwary
2
daft(adjective, silly, foolish, stupid)
2
dumb(adjective, dull, simple, silly, foolish)
2
foolish(adjective, dull, silly, stupid, unintelligent)
2
dull(unintelligent, witless)
2
ignorant(adjective, unsophisticated)
2
mentally deficient(expression, silly, foolish, stupid)
2
mentally handicapped(expression, silly, foolish, stupid)
2
nonsensical(dull, stupid, absurd, unintelligent, witless)
2
senseless(dull, silly, foolish, stupid, unintelligent)
2
simple-minded
2
uncomplicated(adjective, unsophisticated)
2
unintelligent(adjective, dull, simple, silly, foolish)
2
unworldly(adjective, unsophisticated)
2
witless(dull, silly, foolish, stupid, unintelligent)
1
crude(adjective, unsophisticated)
1
absurd
1
arrested
1
asinine
11 years ago|11k views|share |citing 
APASmart Define. (2015). simpleminded thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/simpleminded/thesaurus/synonyms
ChicagoSmart Define. 2015. "simpleminded thesaurus" https://smartdefine.org/simpleminded/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, simpleminded thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/simpleminded/thesaurus/synonyms>.
MLASmart Define. "simpleminded thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/simpleminded/thesaurus/synonyms>