[ uhn-toon, -tyoon ]
/ ʌnˈtun, -ˈtyun /

verb (used with object), un·tuned, un·tun·ing.

to render or cause to become out of tune: Changes in weather can untune a violin.
to discompose; upset, as the mind or emotions.

Origin of untune

First recorded in 1590–1600; un-2 + tune
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for untune

  • To my ear the untune is agony; to my music, a discord in my day is death to what would have been written that day.

    A Woman's Will|Anne Warner