(figuratively, usually humorous) Mentally ill or unstable.

simple past tense and past participle of unhinge

Not furnished with a hinge. / (philately, of a stamp) Not having ever been mounted using a stamp hinge.

The act of unhinging, or the state of being unhinged.

plural of unhingement

present participle of unhinge

Third-person singular simple present indicative form of unhinge

To remove the leaf of a door or a window from its supporting hinges. / (zoology, of a joint) To dislocate. / To mentally disturb.

(slang, idiomatic) To become angered or crazy; to lose control of one's senses or sanity.

The property of being unhinged.