| APA | Smart Define. (1970). up to your ears thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/up_to_your_ears/thesaurus/antonyms |
| Chicago | Smart Define. 1970. "up to your ears thesaurus" https://smartdefine.org/up_to_your_ears/thesaurus/antonyms (accessed September 29, 2026). |
| Harvard | Smart Define 1970, up to your ears thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/up_to_your_ears/thesaurus/antonyms>. |
| MLA | Smart Define. "up to your ears thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/up_to_your_ears/thesaurus/antonyms> |