Meaning & use

bonkers

adjective·Everyday

Completely crazy, foolish, or irrational, often used to express surprise or disbelief.

See it in a sentence

The whole plan sounded bonkers, but somehow it actually worked out perfectly.

Prices for concert tickets have gone completely bonkers this year.

A note on using this word

Bonkers is informal and mostly used in speech; it can describe people, plans, or situations, and is rarely offensive.

Words with a similar meaning

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

Words with an opposite meaning

Make it your own

Write a sentence using “bonkers”, then compare your use with the examples above.

Your draft stays on this page and is not sent anywhere.