untune
/ˈʌnˌtuːn/Definitions
1. verb
to bring out of tune; to disarrange or put out of order
“The musician had to untune the strings after they got damaged in the storm.”
2. verb
to deprive of harmony or concord; to dissonate
“The loud noises untuned the peaceful atmosphere of the park.”
3. noun
a state of being out of tune
“The singer’s voice was in a state of untune after she had a cold.”
4. verb
to make discordant or unpleasant
“The screaming children untuned the otherwise pleasant family outing.”