dementedness
State of insanity
Dementedness is the state of being demented—exhibiting madness, irrationality, or severe mental deterioration.
The word is rare and awkward, since dementia covers the clinical condition and madness or insanity handle the figurative.
When it appears, it usually emphasizes the quality rather than the condition: the sheer dementedness of the plan.
Severe mental illness
- lunacyExtreme irrational foolishness
- madnessMental derangement or folly
- derangementDisturbed mental state
- unhingedMentally or emotionally unstable
crazed · delirium · hysteria · frenzy · mania · psychosis · bedlam · asylum
Absence of rational thought
- senselessnessAbsence of reason or purpose
- incoherenceFailure to make sense
- absurdityWildly illogical quality
- illogicFaulty reasoning
folly · nonsense · irrationality · mindlessness · foolishness · preposterousness · unintelligibility · gibberish
Worsening of thought abilities
- neurodegenerationProgressive loss of neurons
- Alzheimer'sDegenerative brain disease
- senilityAge-related mental decline
- memory lossFailure to recall
disorientation · confusion · impairment · deterioration · incapacity · incompetence · diagnosis · prognosis
Disturbed, restless state
- aggressionHostile or attacking behavior
- paranoiaIrrational persecution fears
- delusionsFirmly held false beliefs
- hallucinationsPerceptions without external cause
outbursts · erratic · unpredictable · restlessness · combative · screaming · repetitive · obsessive
insanity
Severe mental illness
- lunacyExtreme irrational foolishness
- madnessMental derangement or folly
- derangementDisturbed mental state
unhinged · crazed · delirium · hysteria · frenzy · mania · psychosis · bedlam · asylum · raving
unreason
Absence of rational thought
- senselessnessAbsence of reason or purpose
- incoherenceFailure to make sense
- absurdityWildly illogical quality
illogic · folly · nonsense · irrationality · mindlessness · foolishness · preposterousness · unintelligibility · gibberish · rambling
cognitive decline
Worsening of thought abilities
- neurodegenerationProgressive loss of neurons
- Alzheimer'sDegenerative brain disease
- senilityAge-related mental decline
memory loss · disorientation · confusion · impairment · deterioration · incapacity · incompetence · diagnosis · prognosis · symptoms
agitation
Disturbed, restless state
- aggressionHostile or attacking behavior
- paranoiaIrrational persecution fears
- delusionsFirmly held false beliefs
hallucinations · outbursts · erratic · unpredictable · restlessness · combative · screaming · repetitive · obsessive · compulsive
dementednesssanity
Mental soundness
lucidity · rationality · mental clarity · clear-headedness · coherence