一いっ進しん一いっ退たいTop 25000MeaningsNounSuru verbIntransitive verbNo-adjective1. now advancing and now retreating; ebb and flow; seesawing; taking alternately favorable and unfavorable turns (Yojijukugo)Kanji used一one進advance退retreatPitch accentいっしんいったいいっしんいったい