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Definitions

maniacal

[muh-nahy-uh-kuhl] / məˈnaɪ ə kəl /
ADJECTIVE
insane
Synonyms


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.

“The Bride!” is a maniacal assemblage of ’30s musicals, ’40s noirs, 19th century literature and 21st century ideology.

From Los Angeles Times • Mar. 4, 2026

O’Leary, who is maniacal about keeping costs down, didn’t want to add Starlink because of the fuel penalty.

From Barron's • Jan. 21, 2026

Bryant, in turn, became Harrison’s template for what a true superstar looked like: a cutthroat competitor, a maniacal worker, someone who gave every ounce of effort every second.

From The Wall Street Journal • Nov. 11, 2025

But there’s a deeper reason why recently he’s sounding even more maniacal.

From Salon • Oct. 3, 2025

Mr. Weasley gave a maniacal laugh; Mrs. Weasley threw him a look, upon which he became immediately silent and assumed an expression appropriate to the sickbed of a close friend.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling