An event or occurrence.
A (relatively minor) event that is incidental to, or related to others.
An event that causes or may cause an interruption or a crisis, such as a workplace illness or a software error.
Arising as the result of an event, inherent.
(of a stream of particles or radiation) Falling on or striking a 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.
Dependent upon, or appertaining to, another thing, called the principal.