| APA | Smart Define. (-0001). harmonised standard thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/harmonised_standard/thesaurus/antonyms |
| Chicago | Smart Define. -0001. "harmonised standard thesaurus" https://smartdefine.org/harmonised_standard/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define -0001, harmonised standard thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/harmonised_standard/thesaurus/antonyms>. |
| MLA | Smart Define. "harmonised standard thesaurus" 30 November -0001. Web. 24 September 2026. <https://smartdefine.org/harmonised_standard/thesaurus/antonyms> |