This is the 8427th most frequent Japanese word.
惨事
Disaster; tragic event.
惨事 signifies a preventable disaster in a broader context.
惨事を防ぐために対策を講じるべきです。
Measures should be taken to prevent disasters.
The word 惨事 is used here to describe a disaster in the context of an accident.
その事故は恐ろしい惨事でした。
That accident was a terrifying disaster.
惨事 characterizes the magnitude and severity of the calamity.