127 entries under silly topic. ×
| ape(adjective, foolish, crazy, unwise) | |
| bizarre(adjective, wild, strange, foolish) | |
| cockamamy(foolish, thoughtless, unwise, unintelligent) | |
| erratic(adjective, wild, foolish, crazy) | |
| fantastic(weak, simple, foolish, thoughtless) | |
| flipped(foolish, unwise) | |
| frenzied(adjective, wrong, wild, foolish) | |
| hare-brained(adjective, foolish, crazy, zany) | |
| joshing(adjective, light, pleasant, happy) | |
| off the wall(expression, adjective, idiom, light) | |
| outlandish(adjective, foolish, unwise) | |
| outrageous(adjective, foolish, fantastic, unwise) | |
| psychopathic(adjective, foolish, stupid, crazy) | |
| raving(adjective, foolish, stupid, crazy) | |
| unsettled(foolish, stupid, crazy, senseless) | |
| unwise(weak, simple, foolish, unreasonable) | |
| weird(adjective, strange, foolish, fantastic) | |
| bats in the belfry(expression, idiom, foolish, unwise) | |
| beyond all reason(expression, idiom, foolish, fantastic) | |
| derailed(adjective, wrong, wild, foolish) |
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| APA | Smart Define. (2015). loony thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/loony/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "loony thesaurus" https://smartdefine.org/loony/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, loony thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/loony/thesaurus/synonyms>. |
| MLA | Smart Define. "loony thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/loony/thesaurus/synonyms> |