Crazy
Crazy adjective - Showing or marked by a lack of good sense or judgment.
Usage example: a crazy plan to climb Mount Everest without proper equipment
Illogical and crazy are semantically related. in unreasonable topic. In some cases you can use "Illogical" instead an adjective "Crazy".
Illogical
Illogical adjective - Not using or following good reasoning.
Crazy and illogical are semantically related. Sometimes you can use "Crazy" instead an adjective "Illogical". informal substitute
Nearby Word: illogicality
Mutual synonyms
Both words in one sentence
- I will not ignore the old crazy guy's illogical ramblings or take long, lonely walks on the beach/forest at night.
- In Foster's Home for Imaginary Friends, the one person who pointed out how illogical the show's premise is turned out to be crazy.
Source: Dumbass Has a Point -
They never waver from this view, even though crazy things happen in episode after episode demonstrating how illogical or otherwise bizarre the universe is, prompting lectures from The Protagonist to this effect — if they're not busy lecturing everyone else, that is.
Source: Agent Scully
Cite this Source
Illogical and Crazy. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/crazy/illogical
Crazy & Illogical. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/crazy/illogical>.
Illogical or Crazy. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/crazy/illogical.
Google Ngram Viewer shows how "crazy" and "illogical" have occurred on timeline