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Showing results for lunatic. Search instead for lunatel.
Definitions

lunatic

[loo-nuh-tik] / ˈlu nə tɪk /
ADJECTIVE
crazy, mad
Synonyms
STRONGEST
crazed cuckoo maniacal
STRONG
absurd bananas irrational maniac stupid whacko zany
WEAK
baked balmy bonkers cracked daft demented deranged dippy flaky flipped-out foolish freaked-out fried half-baked idiotic insane kooky loco nonsensical nutty preposterous psyched-out screwy unsound
Antonyms
STRONG
logical rational reasonable sensible
WEAK
sane
NOUN
person who is crazy
Synonyms
STRONGEST
maniac psychopath psychotic
STRONG
crackpot crank cuckoo demoniac flake fruitcake kook loon mad person neurotic nut scatterbrain
WEAK
lamebrain sociopath

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mr. Gittlitz writes with the lunatic panache of a utopian manifesto or 2000s sports blog.

From The Wall Street Journal • Mar. 27, 2026

That is a deliberate choice, says Tracy, because Teddy is not -- or at least not just -- a lunatic.

From Barron's • Mar. 1, 2026

"I'm not a lunatic," Bellamy said after topping Wales' Nations League group last year.

From BBC • Oct. 6, 2025

Act Three, which brings a performance of “Nothing On” to utter collapse, doesn’t quite reach the lunatic heights that Frayn intends.

From Los Angeles Times • Feb. 10, 2025

“Did anybody ever tell you that sometimes you talk like a lunatic who speaks perfect English?”

From "Aristotle and Dante Discover the Secrets of the Universe" by Benjamin Alire Saenz