49 entries under slang topic. ×
| nut(noun, informal, mad, sick) | |
| loony(noun, informal, sick, wise) | |
| screwball(noun, sick, wise, mad person) | |
| cuckoo(noun, mad, sick, wise) | |
| kook(noun, mad, sick, wise) | |
| nutcase(noun, sick, nut, fanatic) | |
| psycho(noun, mad, sick, patient) | |
| weirdo(noun, wise) | |
| flake(noun, mad, sick, fanatic) | |
| dingbat(noun, wise, fanatic, ultraist) | |
| jerk(noun, simple, fool, sick) | |
| nutjob(noun, sick, mad person) | |
| ding-a-ling(noun, wise, fanatic, dingbat) | |
| nutter(noun, sick, mad person) | |
| weirdie(noun, wise) | |
| basket case(noun, sick, mad person) | |
| coo-coo(noun, sick, mad person) | |
| crack-brain(noun, sick, mad person) | |
| crack-skull(noun, sick, mad person) | |
| fruit-cake(noun, sick, mad person) |
For more, visit
Loon on
Power Thesaurus
| APA | Smart Define. (2016). loon thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/loon/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "loon thesaurus" https://smartdefine.org/loon/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, loon thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/loon/thesaurus/synonyms>. |
| MLA | Smart Define. "loon thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/loon/thesaurus/synonyms> |