| APA | Smart Define. (1970). mad as a meat axe thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/mad_as_a_meat_axe/thesaurus/antonyms |
| Chicago | Smart Define. 1970. "mad as a meat axe thesaurus" https://smartdefine.org/mad_as_a_meat_axe/thesaurus/antonyms (accessed September 29, 2026). |
| Harvard | Smart Define 1970, mad as a meat axe thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/mad_as_a_meat_axe/thesaurus/antonyms>. |
| MLA | Smart Define. "mad as a meat axe thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/mad_as_a_meat_axe/thesaurus/antonyms> |