mischance
🇺🇸
/ˌmɪsˈtʃæns/
🇬🇧
/ˌmɪsˈtʃɑːns/
An unfortunate event or accident that causes problems.
The mischance of losing the keys caused her to be late for the meeting.
鍵を紛失した不幸が彼女が会議に遅れさせた。