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Synonyms

wacko

American  
[wak-oh] / ˈwæk oʊ /
Also whacko

noun

PLURAL

wackos
  1. Also an eccentric, strange, or odd person.


adjective

  1. wacky.

wacko British  
/ ˈwækəʊ /

adjective

  1. mad or 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

noun

  1. a mad or eccentric person

"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

Etymology

Origin of wacko

First recorded in 1970–75, wacky, -o

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.

I’m not talking about the president’s pot-kettling insults in which he called Bolton “dumb,” a “wacko” or “a disgruntled boring fool.”

From Salon

In April, he was expelled from the House of Commons for calling the prime minister a "wacko".

From BBC

But the most wacko commentary came from former San Bernardino County sheriff’s Deputy Meagan McCarthy.

From Los Angeles Times

Ultimately he could not outrun the wackos in his own party?

From Salon

Impeached twice and a convicted felon who faces more trials, Trump has said that he, and by extension his loyalists, have been persecuted by a “wacko” and unfair state.

From Los Angeles Times