Unscheduled
Part of speech: adjective
Definition: Not scheduled; impromptu
Forced
Part of speech: verb
Definition: To violate (a woman); to rape.
Part of speech: adjective
Definition: obtained forcefully, not naturally
Example sentence: We don't even know how strong we are until we are forced to bring that hidden strength forward. In times of tragedy, of war, of necessity, people do amazing things. The human capacity for survival and renewal is awesome.