dementedness
/dɪˈmɛntɪdnəs/
noun
- The state or condition of being mentally ill or severely confused, especially in a way that makes someone unable to think clearly or behave normally.
- Doctors studied the patient's dementedness to find the best treatment.
- The old man's dementedness made it hard for his family to care for him at home.
- Her sudden dementedness after the accident worried everyone.
- Extreme foolishness or irrational behavior that seems crazy or senseless.
- Only dementedness could explain why he drove through the storm.
- Building a house on that cliff was an act of pure dementedness.
- The plan's dementedness was obvious to everyone except the inventor.
Antonyms