The difference between Demented and Lunatic
When used as adjectives, demented means insane or mentally ill, whereas lunatic means crazed, mad, insane, demented.
Lunatic is also noun with the meaning: an insane person.
check bellow for the other definitions of Demented and Lunatic
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Demented as an adjective:
Insane or mentally ill.
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Demented as an adjective:
Suffering from dementia.
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Demented as an adjective (informal):
Crazy; ridiculous.
Examples:
"a demented idea"
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Demented as a verb:
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Lunatic as a noun:
An insane person.
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Lunatic as an adjective:
Crazed, mad, insane, demented.