Definition of Maniacal

behavior of a crazed person; insane

Examples of Maniacal in a sentence

The hospital staff put the maniacal patient in a straitjacket so she would not hurt herself.  🔊

When Josh consumed too many whiskey shots, he took off his clothes and started to dance in a maniacal way.  🔊

The kidnapper’s maniacal laughter filled the hostages with fear.  🔊

If Caitlyn starts to act maniacal again, the doctor will have to change her psychiatric medication.  🔊

Several police cars pursued the man who was driving in a maniacal manner.  🔊

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