80 entries under adjective topic. ×

5
divergent(harsh, disagreement, different, contrary)
5
incongruous(harsh, disagreement, different, contrary)
5
inharmonic(agree, harsh, contrary, discordant)
5
shrill(upsetting, irritating)
5
sour
5
tuneless(discordant, asperous, raucous, dissonant)
5
uncongenial(agree, conflicting, discordant, strident)
4
antipathetic(harsh, different, contrary, conflicting)
4
atonal
4
discrepant(harsh, disagreement, different, contrary)
4
inconsistent(harsh, different, contrary, conflicting)
4
inconsonant(agree, harsh, disagreement, contrary)
4
jangling(harsh, contrary, conflicting, discordant)
4
rude(agree, sounds, inharmonious)
3
at odds(expression, harsh, conflicting, strident)
3
different(harsh, conflicting, discordant, strident)
3
differing
3
opposite(harsh, different, contrary, conflicting)
2
coarse
2
contentious
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APASmart Define. (2015). unharmonious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unharmonious/thesaurus/synonyms
ChicagoSmart Define. 2015. "unharmonious thesaurus" https://smartdefine.org/unharmonious/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unharmonious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unharmonious/thesaurus/synonyms>.
MLASmart Define. "unharmonious thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/unharmonious/thesaurus/synonyms>