off key

Related to off key: out of key

off key

1. Literally, not in the correct key; out of tune. Hyphenated if used before a noun. I think your voice is a bit off key. Overall, the performance was very enjoyable, but there was one off-key brass player that was driving me nuts the whole night.
2. By extension, at odds with what is normal, standard, or expected. Hyphenated if used before a noun. There was something off key about the way he spoke that made me think that something was very wrong. Her character is an off-key caricature of modern superheroes.
See also: key, off
Farlex Dictionary of Idioms.

off-key

[of music or singing] off pitch; out of tune. She always sings off-key and makes the rest of the choir sound like baying hounds.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • off-key
  • out of tune
  • out of tune with (someone or something)
  • key off
  • key in
  • hot wire
  • wired
  • wiring
  • transpose (something) to (something)
  • high-key
References in periodicals archive
Violence, in this imagery, is then that which goes off key or offbeat.
Earlier, Safina bookedher place in her first grand slam final with a 6-3 6-2 victory over the off key Svetlana Kuznetsova.
Production designer Eugenio Caballero dusts off key locations from the first film like the laser death chamber, while the snarling hell hounds bound back into the fray before the cast abandon the infected cities and head out onto the deserted highways beloved by Mad Max.
In Miami, the FBI said that the ferry later was drifting in international waters about 60 miles off Key West, Florida.
ANOTHER off key Plymouth performance underlined the need for manager Mick Jones to bring in some new faces.
My friend Mike Egan caught this fish, pictured, in less than 60 feet of water off Key West.
OFF KEY Miss Ross finds that even superstars suffer extremely bad hair days
AT HIS PEAK: Ken with organ in 1971' OFF KEY: Volunteers find piano
SIR - May I thank Mario Basini for his wonderful article, 'Decline of male choirs puts communities off key' (The Western Mail, November 22).
TV footage Miami showed officers boarding the bright blue vehicle off Key West yesterday.
David's wahoo, caught off Key West, Florida, took 40 minutes to land, and tipped the scales at 53lb.
The occupants were trying to flee Fidel Castro's regime in the converted ocean-going craft and were just a few miles off Key West when intercepted - meaning they will be sent home.
Email sent to non-keyed addresses is blocked, and users can turn off keys from senders who abuse the system.
Cardiff's second-half domination of the set-piece enabled them to pick off Keys and Anderson's second penalty just short of the hour, plus tries on 64 and 66 from Andrews, settled the issue.
Anti-vandal features, including anti-pull off keys, make these units appropriate for both high-use public applications along with heavy-duty commercial use.