130 entries under foolish topic. ×
| stolid(adjective, dull, slow, stupid) | |
| trustful(plain, pure, innocent, naive) | |
| vacuous(adjective, dull, slow, stupid) | |
| daft(adjective, weak, slow, silly) | |
| dotty(adjective, weak, silly, thoughtless) | |
| insensate(adjective, dull, slow, silly) | |
| unsuspecting(adjective, innocent, susceptible, naive) | |
| careless(adjective, silly, senseless, artless) | |
| crazy(adjective, weak, silly, stupid) | |
| daffy(adjective, weak, slow, silly) | |
| forgetful(adjective, silly, senseless, unnecessary) | |
| half-baked(adjective, dull, weak, slight, slow) | |
| indiscreet(dull, weak, silly, thoughtless) | |
| jerky(adjective, weak, silly, thoughtless) | |
| ludicrous(adjective, dull, weak, silly) | |
| mark(innocent, susceptible, naive, trusting) | |
| mentally deficient(expression, silly, stupid) | |
| mentally handicapped(expression, silly, stupid) | |
| sucker(fool, innocent, susceptible, naive) | |
| trivial(adjective, dull, slight, lower, obscure) |
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| APA | Smart Define. (2016). simple thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/simple/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "simple thesaurus" https://smartdefine.org/simple/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, simple thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/simple/thesaurus/synonyms>. |
| MLA | Smart Define. "simple thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/simple/thesaurus/synonyms> |