[ninaru](suf) (1) becomes; will become; turns out; (2) (with "o" and masu-stem of verb) grammatical form creating an honorific verbal expression; (P)[Add to Longdo]
[いっきいちゆう, ikkiichiyuu](exp) now rejoicing, now worrying; swinging from joy to sorrow; glad and sad by turns; alternating hope and fear; unable to put one's mind at ease; (P)[Add to Longdo]
[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]