閉口 へいこう heikou to be stumped JLPT N1 suru verb noun na-adjective Common word Other meanings 2. to be fed up, to be tired (of), to be unable to bear, to be annoyed The kanji in this word 閉 closed, shut JLPT N3 · Strokes 11 口 mouth JLPT N4 · Strokes 3 In this level 粉末 分離 分裂 ペア 兵器 閉鎖 兵士 平常 平方 並列 Back to the JLPT N1 list Practise these words