discordant
dis-cor-dant
adjective
Lacking harmony or agreement; producing an unpleasant, clashing sound or opinion.
"The discordant music grated on my ears."
Thesaurus
Synonyms: inharmonious, dissonant, unharmonious, disharmonious, inharmonic, discrepant, dissentious, factious, at variance, divisive
Antonyms: accordant