間一髪を入れず かんいっぱつをいれず Meanings Expression immediately; instantly; with nary a pause; without a moment's delay See also: 間髪を入れず (かんぱつをいれず). Kanji 間 interval. Read as カン. 一 one. Read as イチ. 髪 hair. Read as ハツ. 入 enter. Read as いれ. Jinuma: Japanese Dictionary · Word lists