Crackbrained
Crackbrained adjective - Having or showing a very abnormal or sick state of mind.
Subhuman and crackbrained are semantically related. In some cases you can use "Subhuman" instead an adjective "Crackbrained".
Subhuman
Subhuman adjective - Having or showing the nature and appetites of a lower animal.
Crackbrained and subhuman are semantically related. Sometimes you can replace term "Crackbrained" with "Subhuman", this adjectives are similar.
Mutual synonyms
Cite this Source
Subhuman and Crackbrained. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/crackbrained/subhuman
Crackbrained & Subhuman. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/crackbrained/subhuman>.
Subhuman or Crackbrained. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/crackbrained/subhuman.
Google Ngram Viewer shows how "crackbrained" and "subhuman" have occurred on timeline