Crazy
Crazy adjective - Having or showing a very abnormal or sick state of mind.
Usage example: a crazy woman who tried to throw her baby out of a window
Mental is a synonym for crazy in insane topic. In some cases you can use "Mental" instead the word "Crazy" as an adjective or a noun, when it comes to topics like mentally strange.
Mutual synonyms
Both words in one sentence
- Kevin "Aces" Low from NEWGAME+ has become axe crazy due to his increasingly fragile mental state.
Source: Ax Crazy / Web Original - Insane Equals Violent: When Rae first starts hearing other people's thoughts, she willingly goes to a mental institution because she's afraid she might be crazy and turn out Insane Equals Violent.
Source: Literature / Fingerprints - House realizes she's not crazy after all, and that her apparent mental illness is actually a symptom of something else.
Source: Really Seventeen Years Old
Cite this Source
Mental and Crazy. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/crazy/mental
Crazy & Mental. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/crazy/mental>.
Mental or Crazy. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/crazy/mental.
Google Ngram Viewer shows how "crazy" and "mental" have occurred on timeline