Is there any word available for an incident occurred and vanished in front of eyes?
Solution 1:
I guess you are referring to a glimpse
- a very brief passing look, sight, or view.
Solution 2:
Maybe fleeting is the word your looking for?
Fleet (pronunciation: flēt)
verb: literary gerund or present participle: fleeting
move or pass quickly. "a variety of expressions fleeted across his face"
pass (time) rapidly. fade away; be transitory.
Solution 3:
Evanescent: tending to vanish like vapor -evanescently