Crackbrained
adj ·Moderate ·High school level
Definitions
- 1 Idiotic.
"In order to ſet ſo hopeful a Genius right in this matter, vve have ſent you an anſvver to the ill-grounded Sophiſms of thoſe crack brain'd fellovvs, and likevviſe an eaſy mechanical explication of Perception or Thinking."
- 1 insanely irresponsible wordnet
Example
More examples"In order to ſet ſo hopeful a Genius right in this matter, vve have ſent you an anſvver to the ill-grounded Sophiſms of thoſe crack brain'd fellovvs, and likevviſe an eaſy mechanical explication of Perception or Thinking."
Etymology
From crack + brained. The word is centuries old, and the original imagery is of a brain that is cracked (broken), but the advent of crack cocaine produced a new surface analysis whereby the word now also suggests a crack(rock)-addled brain. But even with that difference in referents, cognation is involved regardless.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.