| Main Entry: | dementia |
| Part of Speech: | noun |
| Definition: | senility |
Synonyms: |
Alzheimer's disease, derangement, insanity, madness, mental decay, mental deterioration, mental disorder, personality change, softening of the brain, unbalance |
| Main Entry: | delirium |
| Part of Speech: | noun |
| Definition: | madness |
Synonyms: |
aberration, ardor, dementia, derangement, ecstasy, enthusiasm, fervor, fever, frenzy, furor, fury, hallucination, hysteria, insanity, lunacy, mania, passion, rage, raving, transport, zeal |
Antonyms: |
balance, calmness, saneness |
| Main Entry: | insanity |
| Part of Speech: | noun |
| Definition: | mental illness; foolishness |
Synonyms: |
aberration, absurdity, alienation, craziness, delirium, delusion, dementia, derangement, distraction, dotage, folly, frenzy, hallucination, hysteria, illusion, inanity, irrationality, irresponsibility, lunacy, madness, mania, mental disorder, neurosis, phobia, preposterousness, psychopathy, psychosis, senselessness, unbalance, unreasonableness, witlessness |
Antonyms: |
balance, sanity, soundness, wellness |
| Main Entry: | lunacy |
| Part of Speech: | noun |
| Definition: | craziness, madness |
Synonyms: |
aberration, absurdity, alienation, asininity, dementia, derangement, distraction, fatuity, folly, foolhardiness, foolishness, idiocy, imbalance, imbecility, inanity, ineptitude, insanity, mania, psychopathy, psychosis, senselessness, silliness, stupidity |
Antonyms: |
saneness |
| Main Entry: | madness |
| Part of Speech: | noun |
| Definition: | insanity |
Synonyms: |
aberration, absurdity, craziness, delirium, delusion, dementia, derangement, fanaticism, foolishness, hysteria, irrationality, lunacy, madness, mania, mental disorder, mental illness, neurosis, phobia, psychopathy, psychosis, stupidity, unbalance |
| Main Entry: | mania |
| Part of Speech: | noun |
| Definition: | fixation, madness |
Synonyms: |
aberration, ax to grind, bee in bonnet, bee, bug in ear, bug*, compulsion, craving, craze, craziness, delirium, dementia, derangement, desire, disorder, enthusiasm, fad, fancy, fascination, fetish, fixed idea, frenzy, furor, grabber, hang-up, idée fixe, infatuation, insanity, lunacy, monomania, obsession, on the brain, partiality, passion, preoccupation, rage, thing, tiger by the tail, tiger |
| Main Entry: | derangement |
| Part of Speech: | noun |
| Definition: | insanity |
Synonyms: |
dementia, lunacy, madness |
| Main Entry: | mental retardation |
| Part of Speech: | noun |
| Definition: | mental handicap |
Synonyms: |
amentia, brain damage, dementia, mental defect, mental deficiency, subnormality |
| Main Entry: | insaneness |
| Part of Speech: | noun |
| Definition: | insanity |
Synonyms: |
aberration, absurdity, alienation, brainsickness, craziness, delirium, delusion, dementia, derangement, distraction, disturbance, dotage, folly, frenzy, hallucination, hysteria, illusion, inanity, irrationality, irresponsibility, lunacy, madness, mania, mental disorder, mental illness, neurosis, phobia, preposterousness, psychopathy, psychosis, senselessness, unbalance, unreasonableness, witlessness |
| Main Entry: | psychopathy |
| Part of Speech: | noun |
| Definition: | insanity |
Synonyms: |
aberration, absurdity, alienation, brainsickness, craziness, delirium, delusion, dementia, derangement, distraction, disturbance, dotage, folly, frenzy, hallucination, hysteria, illusion, inanity, insaneness, irrationality, irresponsibility, lunacy, madness, mania, mental disorder, mental illness, neurosis, phobia, preposterousness, psychosis, senselessness, unbalance, unreasonableness, witlessness |