(physics) (of a stream of particles or radiation) falling on or striking a surface (e.g. "The incident light illuminated the surface.")
Coming or happening accidentally; not in the usual course of things; not in connection with the main design; not according to expectation; casual; fortuitous.
Liable to happen; apt to occur; befalling; hence, naturally happening or appertaining.
(legal) Dependent upon, or appertaining to, another thing, called the principal.
Esimerkit
As the ordinary course of common affairs is disposed of by general laws, so likewise men's rarer incident necessities and utilities should be with special equity considered.
all chances incident to man's frail life
the studies incident to his profession
The ray of light was incident on the reflective surface.
Your diplomat refers to this occurrence as a regrettable incident.