| APA | Smart Define. (1970). fool-proof thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fool-proof/thesaurus/antonyms |
| Chicago | Smart Define. 1970. "fool-proof thesaurus" https://smartdefine.org/fool-proof/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 1970, fool-proof thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fool-proof/thesaurus/antonyms>. |
| MLA | Smart Define. "fool-proof thesaurus" 1 January 1970. Web. 22 September 2026. <https://smartdefine.org/fool-proof/thesaurus/antonyms> |