deranged

About 0.66 uses per million words.

Meaning

1. adjective Disturbed or upset, especially mentally.
2. adjective Insane.
3. adjective Malfunctioning or inoperative.
4. verb simple past and past participle of derange

Similar words

crazed insane half-crazed unhinged psycho crazy madness barmy upset confused

Often followed by

by and in the state or mind man as