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DictionarybonkersIrrational
adjective

bonkers

BAHNG-kerz/ˈbɑːŋkərz/

Wildly irrational or out of control.

Balancing on stacked chairs beside an available stepladder is a bonkers idea.

A woman attempts to change a ceiling bulb while balancing on a wildly unstable stack of mismatched chairs, despite an open stepladder immediately beside her.
Etymology

Bonkers may come from naval slang meaning “slightly drunk,” associated with the notion of a thump on the head. That proposed development links drunkenness with the later sense “crazy.”

In context

Epic Gardening0:38
it's bizarre, it's bonkers to me. 'Cause you look this far, and damn, it keeps on going.
He Farms 35 Hours a Week By Himself and Makes 6 Figures

More examples

  • That plan sounds completely bonkers.
  • The constant noise is driving me bonkers.
  • She was bonkers about the new game.

Similar words

crazy
A broader informal term that can be derogatory.
wild
Suggests uncontrolled excitement without necessarily irrationality.