Skip to content

lunatic

/ˈluːnətɪk/noun, adjective3 syllables

Lunatic means: a reckless impetuous irresponsible person.

Synonyms for lunatic23

noun, as in a reckless impetuous irresponsible person

daredevil, madcap, hothead, swashbuckler, harum-scarum

noun, as in an insane person

maniac

adjective, as in insane and believed to be affected by the phases of the moon

moonstruck, insane

also used for lunatic

moonling, basket case, basket weaver, crack, crackpot, crazy, crazyhead, dingbat, eccentric, fruit and nut case, crazed, mad, demented, maniacal, psychotic

Includes material from Wiktionary, CC BY-SA 4.0.

What does lunatic mean?3

noun

1

a reckless impetuous irresponsible person

2

an insane person

adjective

1

insane and believed to be affected by the phases of the moon

Definitions from the Open English WordNet, CC BY 4.0.

Lunatic in a sentence

  • All are lunatics, but he who can analyze his delusions is called a philosopher.carlosalberto
  • We have one more lunatic in this house.OsoHombre
  • Yanni was waving his arms like a lunatic.Amastan
  • David isn't a lunatic to see a therapist.Amastan
  • Gunter was yelling at the cops like a lunatic to help him.Amastan
  • I am honestly convinced that the world is run by complete lunatics.Ooneykcall
  • In here, I look like a madman who just escaped from the lunatic asylum.marcelostockle
  • I'm sorry that I behaved like a lunatic.CK

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

Forms of lunatic

as a noun

plural
lunatics