| APA | Smart Define. (2014). no sound thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/no_sound/thesaurus/antonyms |
| Chicago | Smart Define. 2014. "no sound thesaurus" https://smartdefine.org/no_sound/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2014, no sound thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/no_sound/thesaurus/antonyms>. |
| MLA | Smart Define. "no sound thesaurus" 21 February 2014. Web. 24 September 2026. <https://smartdefine.org/no_sound/thesaurus/antonyms> |