130 entries under foolish topic. ×
| incautious(weak, silly, thoughtless, unwise) | |
| inconsistent(adjective, silly, stupid, insignificant) | |
| injudicious(weak, silly, thoughtless, unwise) | |
| insane(weak, silly, thoughtless, unsound) | |
| irrational(adjective, weak, silly, stupid) | |
| kidding oneself(expression, innocent, susceptible, naive) | |
| kooky(weak, silly, thoughtless, unwise) | |
| loony(weak, silly, thoughtless, unwise) | |
| lunatic(weak, silly, thoughtless, unsound) | |
| mad(adjective, weak, silly, stupid) | |
| meaningless(adjective, dull, slight, lower, slow) | |
| nerdy(weak, silly, thoughtless, unwise) | |
| nonsensical(adjective, dull, weak, silly) | |
| nutty(adjective, weak, silly, stupid) | |
| pointless(adjective, dull, slow, silly) | |
| preposterous(weak, silly, thoughtless, unwise) | |
| rash(adjective, dull, slow, silly) | |
| ridiculous(adjective, weak, silly, stupid) | |
| short-sighted(weak, silly, thoughtless, unwise) | |
| susceptible(innocent, naive, trusting) |
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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> |