[n] disagreeable sounds
[n] the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience; "modern music is just noise to me"
[n] a conflict of people's opinions or actions or characters
Dissonance in poetry is the deliberate avoidance of assonance, i.e. patterns of repeated vowel sounds.
disagreement, dissension, noise, racket
accord, agreement, harmony
auditory sensation, cacophony, conflict, discord, discordance, disharmony, disunity, inharmoniousness, sound, sound property, white noise