- Definitions|1
- Thesaurus|319
- Abbreviations|0
| unconventional(wrong, improper, unacceptable) | |
| unequal(adjective, different, contrary, conflicting, atypical) | |
| unfeeling(adjective, severe, bleak, stark, austere) | |
| ungracious(adjective, severe, bleak, stark, austere) | |
| unkind(adjective, severe, bleak, stark, austere) | |
| unlike(adjective, different, contrary, conflicting, atypical) | |
| unofficial(wrong, improper, unacceptable) | |
| unorthodox(wrong, improper, unacceptable) | |
| unpleasant(adjective, severe, bleak, stark, austere) | |
| unsimilar(adjective, different, contrary, conflicting, atypical) | |
| unsuitable(wrong, improper, unacceptable) | |
| untrue | |
| unusual(wrong, improper, unacceptable) | |
| various(adjective, different, contrary, conflicting, atypical) | |
| wicked(adjective, severe, bleak, stark, austere) | |
| wrong(improper, unacceptable) |
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| APA | Smart Define. (2015). off-key thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/off-key/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "off-key thesaurus" https://smartdefine.org/off-key/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, off-key thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/off-key/thesaurus/synonyms>. |
| MLA | Smart Define. "off-key thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/off-key/thesaurus/synonyms> |