atonalism

[ey-tohn-l-iz-uh m]

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noun Music.

atonality.
a note, phrase, etc., that seems harsh or discordant.

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Origin of atonalism

First recorded in 1925–30; atonal + -ism

Related formsa·ton·al·ist, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018