| APA | Smart Define. (2015). heart and soul thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/heart_and_soul/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "heart and soul thesaurus" https://smartdefine.org/heart_and_soul/thesaurus/antonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, heart and soul thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/heart_and_soul/thesaurus/antonyms>. |
| MLA | Smart Define. "heart and soul thesaurus" 19 June 2015. Web. 1 October 2026. <https://smartdefine.org/heart_and_soul/thesaurus/antonyms> |