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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.

Alex Batty, who was abducted as a child and taken to live abroad by his mother, has contacted her for the first time since his return to the UK in 2023.

From BBC • May 13, 2026

Melanie and David Batty were contacted for comment by the BBC but did not provide a response to the allegations.

From BBC • May 13, 2026

To say Batty has kept a low profile since retiring in 2004 would be an understatement.

From BBC • Jan. 7, 2026

Those who encountered Batty at Blackburn and Newcastle felt similarly.

From BBC • Jan. 7, 2026

At Batty Green the navvies declared that they were in one of the wildest, windiest, coldest, and dreariest localities in the world. 

From The Cruise of the Elena or Yachting in the Hebrides by Ritchie, J. Ewing (James Ewing)

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