unhinged

/ʌnˈhɪndʒd/
adjective
  1. Mentally or emotionally unstable; crazy or out of control.
    • The villain in the movie was a dangerously unhinged character.
    • After the accident, he seemed completely unhinged.
    • Her unhinged rant at the meeting shocked everyone.
Antonyms
What does "unhinged" mean? | whatsthatwordmean | whatsthatwordmean