[いっしんいったい, isshin'ittai](n, vs, adj-no) now advancing and now retreating; ebb and flow; seesawing; taking alternately favorable and unfavorable turns[Add to Longdo]
[しゅっしょしんたい, shusshoshintai](n) advancing and retreating; appearance and disappearance; one's daily activities; one's course of action; one's attitude[Add to Longdo]