| APA | Smart Define. (1970). nonmainstream thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/nonmainstream/thesaurus/antonyms |
| Chicago | Smart Define. 1970. "nonmainstream thesaurus" https://smartdefine.org/nonmainstream/thesaurus/antonyms (accessed September 20, 2026). |
| Harvard | Smart Define 1970, nonmainstream thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/nonmainstream/thesaurus/antonyms>. |
| MLA | Smart Define. "nonmainstream thesaurus" 1 January 1970. Web. 20 September 2026. <https://smartdefine.org/nonmainstream/thesaurus/antonyms> |