行(い)き成(な)りabruptly, suddenly, all of a sudden, without warning

行(い)き成(な)り車道(しゃどう)に飛(と)び出(だ)すのは危険(きけん)です。

It is dangerous to suddenly jump out onto the roadway. {abruptly, suddenly, all of a sudden, without warning}

旧友(きゅうゆう)：「行(い)き成(な)りプライベートな事(こと)を聞(き)かないで。」

Old Friend: 'Don't suddenly ask about private matters.' {abruptly, suddenly, all of a sudden, without warning}

路地(ろじ)から子供(こども)が行(い)き成(な)り飛(と)び出(だ)してきたのでビックリしました。

I was surprised because a child suddenly jumped out from the alley. {abruptly, suddenly, all of a sudden, without warning}

行(い)き成(な)り解雇(かいこ)された。おまけに退職(たいしょく)金(きん)もないので急(きゅう)に生活(せいかつ)が苦(くる)しくなった。

I was suddenly fired. To make matters worse, I don't have any severance pay, so my life has suddenly become difficult. {abruptly, suddenly, all of a sudden, without warning}

いつも穏(おだ)やかな部長(ぶちょう)が行(い)き成(な)り怒(おこ)り出(だ)した時(とき)、彼(かれ)は操(あやつ)られているかのようだった。

When the always calm department head suddenly started to get angry, he seemed to be manipulated. {abruptly, suddenly, all of a sudden, without warning}