noun
- the state or quality of being demented; severe mental illness or insanity
Usage: formal; often used to describe extreme confusion or loss of mental faculties
Examples
- The character's dementedness became apparent as he lost touch with reality.
- Years of isolation contributed to his gradual dementedness.
- Her dementedness made it impossible for her to care for herself.
- The doctor diagnosed his condition as advanced dementedness.
- His dementedness was evident in his incoherent speech and confused behavior.