128 entries under adjective topic. ×

10
sour(hard, right, severe, sharp)
9
harsh(hard, severe, sharp, flat)
6
discordant(hard, right, severe, sharp)
6
false
5
divergent(right, wrong, irregular, improper)
5
flat(hard, right, severe, sharp)
5
irregular(right, wrong, improper, different)
4
abnormal(right, wrong, irregular, improper)
4
anomalous(right, wrong, irregular, improper)
4
deviant(right, wrong, improper, different)
4
dissonant(hard, right, severe, sharp)
4
inharmonious
4
unmusical(hard, right, severe, sharp)
4
unnatural(right, wrong, improper, different)
3
out of tune(expression, idiom, right)
2
cacophonous(hard, severe, sharp, flat)
2
cracked(hard, severe, sharp, flat)
2
different(wrong, irregular, improper, conflicting)
2
grating(hard, severe, sharp, flat)
2
jarring(hard, right, severe, sharp)
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APASmart Define. (2015). off-key thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/off-key/thesaurus/synonyms
ChicagoSmart Define. 2015. "off-key thesaurus" https://smartdefine.org/off-key/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, off-key thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/off-key/thesaurus/synonyms>.
MLASmart Define. "off-key thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/off-key/thesaurus/synonyms>