| dippy | |
| extravagant(calm, good, plain, thrifty) | |
| foolhardy | |
| frivolous(adjective, silly, trivial) | |
| gullible(adjective, naive, discerning, trusting) | |
| heedless(adjective, careless, foolish, unsound) | |
| ill-advised(adjective, unwise) | |
| illogical | |
| imperceptive | |
| impetuous(adjective, calm, thinking) | |
| impolitic(adjective, careless, unwise) | |
| impractical | |
| impulsive(adjective, cautious, tending) | |
| inane | |
| inexperienced(adjective, careless, foolish, unsound) | |
| laughable | |
| lunatic | |
| mistaken | |
| moronic | |
| nuts |
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| APA | Smart Define. (2016). wise thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/wise/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "wise thesaurus" https://smartdefine.org/wise/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, wise thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/wise/thesaurus/antonyms>. |
| MLA | Smart Define. "wise thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/wise/thesaurus/antonyms> |