| sophisticated(adjective, clean) | |
| soured | |
| specked(adjective, blemished) | |
| splotched(adjective, blemished) | |
| spotted(adjective, blemished) | |
| stale(adjective, mean, poor, low, rank) | |
| tarnished(adjective, blemished) | |
| tasteless(adjective, dull, rough, low, offensive) | |
| thick | |
| toxic(adjective, unclean) | |
| turned | |
| ungodly(adjective, bad, offensive, foul, wicked) | |
| ungraded(adjective, simple, rough, coarse, natural) | |
| unprincipled(adjective, loose, corrupt, wicked, immoral) | |
| unprintable | |
| unpurified | |
| unscrupulous(adjective, wrong, evil, corrupt, wicked) | |
| unseemly(adjective, dull, rough, low, offensive) | |
| unsorted(adjective, simple, rough, coarse, natural) | |
| unsound |
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| APA | Smart Define. (2016). impure thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impure/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "impure thesaurus" https://smartdefine.org/impure/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, impure thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impure/thesaurus/synonyms>. |
| MLA | Smart Define. "impure thesaurus" 11 January 2016. Web. 23 September 2026. <https://smartdefine.org/impure/thesaurus/synonyms> |