unmusical
131discordant — Synonyms and related words: absonant, adversative, adverse, adversive, antagonistic, anti, antipathetic, antithetic, antonymous, assorted, at cross purposes, at loggerheads, at odds, at variance, at war, atonal, balancing, cacophonic, cacophonous …
132disharmonious — Synonyms and related words: absonant, antagonistic, antipathetic, at cross purposes, at loggerheads, at odds, at variance, at war, atonal, cacophonic, cacophonous, clashing, colliding, conflicting, contradictory, contrary, cracked, cranky, cross …