| APA | Smart Define. (2016). grand duchess thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/grand_duchess/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "grand duchess thesaurus" https://smartdefine.org/grand_duchess/thesaurus/antonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, grand duchess thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/grand_duchess/thesaurus/antonyms>. |
| MLA | Smart Define. "grand duchess thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/grand_duchess/thesaurus/antonyms> |