crackbrained

== English == === Alternative forms === crack-brained, crack brained === 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. === Adjective === crackbrained (comparative more crackbrained, superlative most crackbrained) Idiotic. Synonyms: birdbrained; see also Thesaurus:stupid ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== ==== See also ==== === References === “crackbrained, adj.”, in OED Online ⁠, Oxford: Oxford University Press, launched 2000.