Definition & Meaning of "lunatic"in English

lunatic

ADJECTIVE

suffering from a severe mental illness

brainsick

crazy

deranged

insane

mad

Grammatical Information

Composition

Simple

qualitative

ungradable

Examples

In ancient times, people believed that the moon could cause lunatic behavior in individuals.

Lunatic

NOUN

a person who is mentally ill or exhibits extreme irrational behavior

crazy

loony

nutcase

nutter

wacko

Grammatical Information

Animacy status

animate

Plural form

lunatics

Examples

The townsfolk avoided the old mansion, fearing the lunatic that resided within.

a person who acts foolishly or dangerously

Examples

The lunatic jumped into the freezing lake on a dare.

Lexical Tree

lunatic

lun

Nearby Words

lunar excursion module

Definition & Meaning of "lunatic"in English

Download Mobile App