noun
bad luck; adversity; reverse of fortune
Refers to an unlucky turn of events or a reversal of good fortune. Somewhat formal or literary; in everyday speech, 不運 (ふうん) or 悪運 (あくうん) are more common.
彼は逆運に耐えながらも、希望を捨てなかった。
He endured adversity but never gave up hope.
逆運を嘆くよりも、前に進むことが大切だ。
Rather than lamenting your bad luck, it's important to move forward.