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Synonyms

batty

American  
[bat-ee] / ˈbæt i /

adjective

Slang.
battier, battiest
  1. insane; crazy; eccentric.


batty British  
/ ˈbætɪ /

adjective

  1. insane; crazy

  2. odd; eccentric

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of batty

bat 2 + -y 1

Explanation

If someone's batty, she's eccentric or a little bit wacky. You might love it when your batty great aunt visits because she makes life so interesting. The adjective batty can be derogatory — as when you dismiss a mentally ill person as batty — or fond, as when you praise your batty English teacher, who quotes Shakespeare while doing handstands. If someone says, "You are driving me batty," it means you're making them feel crazy. Batty originally meant "like a bat," with the "eccentric" meaning arising from the expression "bats in the belfry," which means "crazy" or "not right in the head."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Melanie Batty has never been charged with a crime in connection to Alex's disappearance.

From BBC • May 13, 2026

David Batty was one side of me and someone else was on the other and I was like, 'Oh my God'... like, it's Batts... legend!

From BBC • Mar. 21, 2026

Those who encountered Batty at Blackburn and Newcastle felt similarly.

From BBC • Jan. 7, 2026

So it proved after Batty chose to maintain a quiet family life after retiring.

From BBC • Jan. 7, 2026

A strong gale opening the sea, they improved the occasion by crossing Batty Bay, when the heavy mahogany boat of Ross was nearly swamped.

From True Tales of Arctic Heroism in the New World by Greely, Adolphus W.

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