Unexpected Incident
Unusual Incident
noun
You know 変 means "change," but it can also mean "strange." So a strange occurrence is an incident that is unlikely. In other words, an unexpected incident or an unusual incident.
変事 is a formal word used to describe sudden and unusual occurrences that disrupt normal conditions, such as natural disasters, emergencies, or crises. You won't see this word often, but may still come across it in formal writing.
With 変事, think of how the 変 comes first to emphasize the strangeness of the incident.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
変事が起こる
a strange incident occurs
変事が発生する
a strange incident occurs
変事が起きる
a strange incident occurs
変事がつづく
strange incidents continue
その年に、変事が起きたんです。
An unusual incident happened that year.
変事が発生した場合のシミュレーションをしておくべきだと思います。
I think we should simulate what to do in case something strange happens.
トーフグに何か変事が起きたんじゃないかと、全ワニカニユーザーが心配していたんですよ。
All WaniKani users were worried that some unusual incident had befallen Tofugu.