unhinged Definition

1a. To remove (a door, etc) from its hinges;
1b. To remove the hinges from (a door, etc).
2. To unbalance or derange (a person or a person's mind).

Thesaurus: upset, drive mad, confuse, craze, madden, unnerve, unsettle, shake, distract; Antonym: pacify, placate.
3. To disrupt (a process, etc) or throw it into a state of confusion.
4. To detach or separate (one thing from another).

Said of a door, etc: removed from its the hinges;

Said of a door, etc: with its hinges removed.

Said of a person: deranged; crazy.
Example: Harry has been unhinged for years now