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: crazy, mad
fans went bonkers when their team won
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balmy, bats, batty, bedlam, brainsick, certifiable, crackbrained, cracked, crackpot, crazed, crazy, cuckoo, daffy, daft, demented, deranged, gaga, insane, kooky (also kookie), loco [slang], loony (also looney), lunatic, mad, maniacal (also maniac), mental, non compos mentis, nuts, nutty, psychotic, screwy, unbalanced, unhinged, unsound, wacky (also whacky)
balanced, compos mentis, sane, sound, uncrazy
Recent Examples on the Web
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bonkers.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1945, in the meaning defined above
perhaps from bonk + -ers (as in crackers)
Resources for bonkers
7 Sep 2018
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Comments on bonkers
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to make amends
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How a folk song became a term of derision.
Sorry, not sorry
The participle made famous by Elvis
A not-so-sarcastic history
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
A quiz in common time.
A game of winding words.