Crackbrain
Crackbrain noun - A person judged to be legally or medically insane.
Usage example: once a brilliant dancer, he died a crackbrain in a mental institution
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Synonyms for Crackbrain
Nutcase and crackbrain are semantically related. In some cases you can use "Nutcase" instead a noun "Crackbrain".
Nutcase
Nutcase noun - A person judged to be legally or medically insane.
Usage example: some nutcase was arrested for sending the threatening letters to the White House
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Synonyms for Nutcase
Mutual synonyms
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Cite this Source
Nutcase and Crackbrain. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/crackbrain/nutcase
Crackbrain & Nutcase. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/crackbrain/nutcase>.
Nutcase or Crackbrain. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/crackbrain/nutcase.
Google Ngram Viewer shows how "crackbrain" and "nutcase" have occurred on timeline