Crackbrained
Crackbrained adjective - Having or showing a very abnormal or sick state of mind.
Idiot and crackbrained are semantically related. In some cases you can use "Idiot" instead an adjective "Crackbrained".
Idiot
Idiot noun - A stupid person.
Crackbrained and idiot are semantically related. Sometimes you can replace term "Crackbrained" with "Idiot", this nouns are similar.
Cite this Source
Idiot and Crackbrained. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/crackbrained/idiot
Crackbrained & Idiot. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/crackbrained/idiot>.
Idiot or Crackbrained. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/crackbrained/idiot.
Google Ngram Viewer shows how "crackbrained" and "idiot" have occurred on timeline