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Definitions

off-key

[awf-kee, of-] / ˈɔfˈki, ˈɒf- /
ADJECTIVE
not sounding right
Synonyms
STRONGEST
discordant dissonant
WEAK
abnormal anomalous clinker deviant divergent flat inharmonious irregular jarring not harmonious off-pitch off-tone out of keeping out of pitch out-of-tune sour sour note unmusical unnatural untuned
Antonyms
STRONGEST
concordant harmonious
WEAK
on-key

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He and his comrades were often forced to sing Soviet songs and were punished if they didn't sing "loud enough or sang off-key".

From Barron's • May 8, 2026

After Hegseth gave us his version of news headlines, he performed a brief off-key song and dance before skating out of the room having accomplished little and settling nothing.

From Salon • Mar. 14, 2026

The former Years & Years singer, 33, had been criticised on social media for his "weak" and "off-key" vocals during the semi-final on Tuesday after his mic pack fell off during his performance.

From BBC • May 12, 2024

If their off-key, overlooked masterpiece “Mississippi Grind” is any indication, “Freaky Tales” may well be the next iteration of Boden and Fleck at their loose and lived-in best.

From Los Angeles Times • Jan. 17, 2024

My voice went up and got crackly, then it went off-key.

From "Ugly" by Robert Hoge