| APA | Smart Define. (2011). strengthy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/strengthy/thesaurus/antonyms |
| Chicago | Smart Define. 2011. "strengthy thesaurus" https://smartdefine.org/strengthy/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2011, strengthy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/strengthy/thesaurus/antonyms>. |
| MLA | Smart Define. "strengthy thesaurus" 23 May 2011. Web. 23 September 2026. <https://smartdefine.org/strengthy/thesaurus/antonyms> |