Meaning

2 senses
  1. (colloquial, humorous)A stupid person; sometimes one who is being stubborn to the point of stupidity.

  2. (slang)A person who is stuck in their ways; one who is unwilling to try new ideas.

Origin

Purportedly from a calque from Japanese 頭(あたま)が固(かた)い (atama ga katai, “resistant to new w

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”).

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: concrete-heads
Singularconcrete-head
Pluralconcrete-heads

regular

See also

neighbours in the dictionary

Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.

concrete-head — meaning, examples, forms, synonyms | Krumeto