grievous

causing fear or anxiety by threatening great harm; "a dangerous operation"; "a grave situation"; "a grave illness"; "grievous bodily harm"; "a serious wound"; "a serious turn of events"; "a severe case of pneumonia"; "a life-threatening disease"

खान्त~नाटक~का~लेखक"Marloe,the playwriter was a tragedian.

It was a grievous bus accident.