- Definitions|2
- Thesaurus|3.6k
- Abbreviations|0
102 entries under expression topic. ×
| bats in the belfry(idiom, foolish, mad, insane) | |
| mad as a March hare(idiom, foolish, mad, insane) | |
| mad as a hatter(idiom, foolish, mad, insane) | |
| nutty as fruitcake(idiom, foolish, mad, insane) | |
| of unsound mind(idiom, foolish, stupid, mad) | |
| out to lunch(idiom, foolish, crazy, mad) | |
| round the bend(idiom, foolish, mad, insane) | |
| without rhyme or reason(adjective, idiom, stupid, insignificant) | |
| around in circles(adjective, idiom, stupid, insignificant) | |
| being a sucker(foolish, innocent, susceptible, naive) | |
| beyond all reason(idiom, foolish, fantastic, half-baked) | |
| bird brain | |
| dumb ox(simple, fool, innocent, jerk) | |
| easily taken in(foolish, innocent, susceptible, naive) | |
| easy mark(simple, foolish, innocent, naive) | |
| fair game(simple, fool, innocent, jerk) | |
| falling hook line and sinker(foolish, innocent, susceptible, naive) | |
| familiar tune(adjective, dull, flat, tired) | |
| feeble minded | |
| flipped out(foolish, crazy, mad, insane) |
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| APA | Smart Define. (2016). silly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/silly/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "silly thesaurus" https://smartdefine.org/silly/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, silly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/silly/thesaurus/synonyms>. |
| MLA | Smart Define. "silly thesaurus" 20 January 2016. Web. 20 September 2026. <https://smartdefine.org/silly/thesaurus/synonyms> |