間髪入れず かんぱついれず Also written かんはついれず, 間髪いれず Meanings Expression, Adverb immediately; instantly; with nary a pause; without a moment's delay (orig. from 間(かん)、髪(はつ)をいれず) See also: 間髪を入れず (かんぱつをいれず). Kanji 間 interval. Read as カン. 髪 hair. Read as ハツ. 入 enter. Read as いれ. Jinuma: Japanese Dictionary · Word lists