| APA | Smart Define. (1970). stress-free thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/stress-free/thesaurus/antonyms |
| Chicago | Smart Define. 1970. "stress-free thesaurus" https://smartdefine.org/stress-free/thesaurus/antonyms (accessed September 30, 2026). |
| Harvard | Smart Define 1970, stress-free thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/stress-free/thesaurus/antonyms>. |
| MLA | Smart Define. "stress-free thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/stress-free/thesaurus/antonyms> |