Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

414. Discord — N. discord, discordance; dissonance, cacophony, want of

harmony, caterwauling; harshness &c 410. [Confused sounds], Babel, Dutch concert, cat's concert; marrowbones and cleavers. V. be discordant &c adj.; jar &c (sound harshly) 410. Adj. discordant; dissonant, absonant†; out of tune, tuneless; unmusical, untunable†; unmelodious, immelodious†; unharmonious†, inharmonious; singsong; cacophonous; harsh &c 410; jarring.