adj
maniacal
muh-NEYE-uhkl
adj
1
Wildly frenzied or behaving like a madman.
"The villain let out a maniacal laugh before slamming the door."
How to Use Maniacal
Learner’s notesIn plain EnglishBehaving in a wild, frenzied, crazy way.
Common pairings
maniacal laugh
maniacal grin
Word Forms
more maniacal comparative, most maniacal superlative
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The villain let out a _____ laugh before slamming the door.
Etymology
Built from maniac plus the adjective suffix -al, ultimately from Greek maniakos.