concrete-head

== English == === Etymology === Purportedly from a calque from Japanese 頭(あたま)が固(かた)い (atama ga katai, “resistant to new ways of thinking”, literally “having a hard head”). Possibly originally from unattested Taiwanese Japanese *頭(あたま)コンクリート (atama konkurīto, literally “concrete-head”), which can be reconstructed from the phonetic borrowing of Taiwanese Mandarin 阿達馬孔固力／阿达马孔固力 (ādámǎ kǒnggùlì, “concrete-head”). === Noun === concrete-head (plural concrete-heads) (derogatory) (colloquial, humorous) A stupid person; sometimes one who is being stubborn to the point of stupidity. (management, slang) A person who is stuck in their ways; one who is unwilling to try new ideas. ==== Translations ====