| APA | Smart Define. (2013). profoundly impressive thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/profoundly_impressive/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "profoundly impressive thesaurus" https://smartdefine.org/profoundly_impressive/thesaurus/synonyms (accessed October 2, 2026). |
| Harvard | Smart Define 2013, profoundly impressive thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/profoundly_impressive/thesaurus/synonyms>. |
| MLA | Smart Define. "profoundly impressive thesaurus" 19 May 2013. Web. 2 October 2026. <https://smartdefine.org/profoundly_impressive/thesaurus/synonyms> |