| APA | Smart Define. (2014). easily heard thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/easily_heard/thesaurus/antonyms |
| Chicago | Smart Define. 2014. "easily heard thesaurus" https://smartdefine.org/easily_heard/thesaurus/antonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2014, easily heard thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/easily_heard/thesaurus/antonyms>. |
| MLA | Smart Define. "easily heard thesaurus" 22 September 2014. Web. 29 September 2026. <https://smartdefine.org/easily_heard/thesaurus/antonyms> |