dissonate
Verb
Meaning
cause to sound harsh and unpleasant
be dissonant or harsh
Source: WordNetSynonyms
disharmonize
conflicting
inconsistent
contradictory
repugnant
discordant
dissonant
inharmonious
discrepant
unmelodious
atonal
gainsaying
off-key
contravening
Hypernyms
Examples
The violins in this piece dissonated disturbingly