Crazy
Wacko
Wacko adjective - Having or showing a very abnormal or sick state of mind.
Usage example: the governor's staff spread rumors that his opponent's wife was wacko, as she had once undergone shock therapy for depression
Mutual synonyms
Both words in one sentence
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Wakko, a play on "wacko", as in someone who is a little whacky (strange or crazy), and Yakko, a play on "yakking away" or talking incessantly.
Source: Western Animation / Animaniacs - Cinema Snob: Since they killed off Crazy Ralph in the last film, they need some other drunken wacko to warn them away.
Source: Haunted House Historian -
Underestimating Badassery: One of the primary themes of the "World's Finest" crossover is that both Superman and Luthor consider Batman to be a crazy guy with no powers and the Joker a wacko clown who aren't worth their time and energy.
Cite this Source
Wacko and Crazy. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/crazy/wacko
Crazy & Wacko. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/crazy/wacko>.
Wacko or Crazy. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/crazy/wacko.
Google Ngram Viewer shows how "crazy" and "wacko" have occurred on timeline