adjectival noun or quasi-adjective, takes genitive case の, noun

  1. taciturn, reticent, quiet, silent, untalkative.

Variations

Pronunciation Kanji Kana Is Common
無口 むくち

Contained Kanji Breakdown

nothingness, none, ain't
ム ブ な.い (4th)
person(人) variant
40, forty
シュウ よんじゅう しじゅう
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
fire, fire radical (no. 86)
ヒョウ カ
mouth
くち コウ ク (1st, N4)