off-key adjective 2adverb 1forms 2 adjective2 •Above or below the correct note sequence; especially a vocalist out of sync with a separately recorded musical accompaniment •Not harmonious, or out of accord. adverb1 •Being an inaccurate note sequence that is either above or below where it is intended to be.The way your smile just beams / The way you sing off-key / The way you haunt my dreams / No, no—they can't take that away from me — 1937 formsmore off-key · most off-key
