unhinged

unhinge +‎ -ed

unhinged

1. simple past tense and past participle of unhinge

un- +‎ hinged

unhinged (comparative more unhinged, superlative most unhinged)

1. Not furnished with a hinge.

   an unhinged door

2. (philately, of a stamp) Not having ever been mounted using a stamp hinge.
3. (figuratively, usually humorous) Mentally ill or unstable.
   • 1998, SPIN (page 78)

     After the screening, a large crowd filled the street outside the theater, playing spot-the-sublebrity with some of the film's prime characters, including Nirvana photographer Alice Wheeler and Love's estranged (and notoriously unhinged) father.

• MUH
• MNH