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Synonyms

wacky

American  
[wak-ee] / ˈwæk i /
Also whacky

adjective

Slang.
wackier, wackiest

  1. odd or irrational; crazy.

    They had some wacky plan for selling more books.
wacky British  
/ ˈwækɪ /

adjective

  1. slang eccentric, erratic, or unpredictable

"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

  • wackily adverb
  • wackiness noun

Etymology

Origin of wacky

First recorded in 1935–40; apparently whack (noun, as in out of whack ) + -y 1

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.

The wacky and crazy stuff made great anecdotes, but it didn’t dominate the indexes any more than Strategy does now.

From MarketWatch

This latest creation is a dud, a banal sitcom figure surrounded by wacky characters who can’t wring any laughs out of Mr. Brooks’s musty script.

From The Wall Street Journal

Writer-director Noah Baumbach’s funniest and finest movie in many years is perfection all the way through: the perfect casting choice, the perfect balance of comedy and pathos, the perfect wacky route to the perfect ending.

From The Wall Street Journal

There’s a lot of wacky odd-couple chemistry in their interactions; she was programmed to have, or at least imitate, human emotional intelligence, while he is more given to broad statements about being a fierce loner.

From The Wall Street Journal

Freddie Freeman slammed a walk-off homer to lead off the bottom of the 18th, putting the finishing touch on one of the weirdest, wackiest, most mind-numbing contests ever staged in the Fall Classic.

From The Wall Street Journal

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.