Crackbrain
Crackbrain noun - A person judged to be legally or medically insane.
Show all Definitions
Synonyms for Crackbrain
Jackass and crackbrain are semantically related. In some cases you can use "Jackass" instead a noun "Crackbrain".
Jackass
Jackass noun - A person who lacks good sense or judgment.
Usage example: only a jackass would dive into a lake without first checking to see how deep the water is
Crackbrain and jackass are semantically related. Sometimes you can use "Crackbrain" instead a noun "Jackass".
Mutual synonyms
Related pairs
Cite this Source
Jackass and Crackbrain. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/crackbrain/jackass
Crackbrain & Jackass. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/crackbrain/jackass>.
Jackass or Crackbrain. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/crackbrain/jackass.
Google Ngram Viewer shows how "crackbrain" and "jackass" have occurred on timeline