maniac
1 ENTRIES FOUND:
plural
maniacs
plural
maniacs
Britannica Dictionary definition of MANIAC
[count]
1
:
someone who is violent and mentally ill
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The movie he rented was about a maniac [=madman, lunatic] who goes on a murderous rampage.
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a homicidal maniac
2
informal
:
a person who behaves in a very wild way
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He's a complete maniac when he's playing football.
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She drives like a maniac. [=she drives in a very reckless and dangerous way]
3
informal
:
a person who is extremely enthusiastic about something
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His friends are all sports maniacs. [=fanatics]
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a movie maniac [=freak]
— maniac
adjective, always used before a noun [more maniac; most maniac]-
maniac killers/fans
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a maniacal killer/fan
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She let out a maniacal laugh.
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maniacal sports fans
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laughing maniacally
