- Definitions|1
- Thesaurus|319
- Abbreviations|0
| squawky(adjective, harsh) | |
| stridulous(adjective, hard, severe, sharp, flat) | |
| uneven(adjective, hard, severe, sharp, flat) | |
| unlevel(adjective, hard, severe, sharp, flat) | |
| unregular | |
| unrelenting(adjective, hard, severe, sharp, flat) | |
| untunable | |
| untuneful | |
| untypical(adjective, irregular, different, contrary, conflicting) | |
| variant(adjective, irregular, different, contrary, bent) | |
| abusive(adjective, severe, bleak, stark, austere) | |
| acoustic | |
| antithetical(adjective, different, contrary, conflicting, atypical) | |
| assumed | |
| austere(adjective, severe, bleak, stark, inhospitable) | |
| bass | |
| bituminous | |
| bluesy | |
| brutal(adjective, severe, bleak, stark, austere) | |
| classical |
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| APA | Smart Define. (2015). off-key thesaurus. Retrieved September 22, 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 22, 2026). |
| Harvard | Smart Define 2015, off-key thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/off-key/thesaurus/synonyms>. |
| MLA | Smart Define. "off-key thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/off-key/thesaurus/synonyms> |