103 entries under silly topic. ×
| bats in the belfry(expression, idiom, foolish, mad) | |
| berserk(adjective, foolish, crazy, mad) | |
| delirious(adjective, foolish, crazy, mad) | |
| dippy(adjective, foolish, mad, insane) | |
| eccentric(adjective, unusual, foolish, unwise) | |
| flipped out(expression, foolish, crazy, mad) | |
| freaked out(expression, foolish, mad, insane) | |
| goofy(adjective, foolish, unwise) | |
| mad as a March hare(expression, idiom, foolish, mad) | |
| mad as a hatter(expression, idiom, foolish, mad) | |
| mentally strange(expression, foolish, mad, insane) | |
| nutty as fruitcake(expression, idiom, foolish, mad) | |
| round the bend(expression, idiom, foolish, mad) | |
| screw loose(expression, foolish, mad, insane) | |
| absurd(simple, foolish, unsound, unwise) | |
| ape(foolish, crazy, mad, insane) | |
| bizarre(unusual, foolish, stupid, unwise) | |
| derailed(foolish, stupid) | |
| dingy(foolish, mad, insane, unwise) | |
| erratic(foolish, mad, insane, unwise) |
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| APA | Smart Define. (2015). mental thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/mental/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mental thesaurus" https://smartdefine.org/mental/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, mental thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/mental/thesaurus/synonyms>. |
| MLA | Smart Define. "mental thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/mental/thesaurus/synonyms> |