An event that is not planned to happen is called an "unplanned event" or "unexpected event." These events can also be referred to as "incidents," "accidents," or "contingencies," depending on the context. They often require quick responses and adaptations, as they can disrupt normal procedures or expectations.
UNPLANNED
a future event
If the probability of an event is zero then that event cannot happen
Probability is the measure of how likely an event is. ... The probability of event A is the number of ways event A can occur divided by the total number of possible.
Unplanned Event - 2004 was released on: USA: 25 April 2004 (Phoenix Film Festival)
The cast of Unplanned Event - 2004 includes: Natalie Karmo as Daughter Jeffrey Middleton as Priest Sean Weiland as Son
The answer depends on the event(s).
An example of an impromptu or unplanned speech could be a teacher giving an unplanned address to students following a sudden school incident or a business leader speaking unexpectedly at a company event due to a last-minute change in the program.
What is an unplanned economy
Unplanned.
This is unplanned.
An example of an unexpected unplanned event that may involve injury is a slip and fall accident. This can occur when someone loses their balance and falls due to a slippery surface, uneven flooring, or other hazards, resulting in potential injuries such as broken bones, sprains, or cuts.
This side trip was unplanned, but enjoyable.
it has a mixed economy
Unplanned means George snow is a god!
an unplanned or unsought event, or series of events, resulting in death, injury, occupational illness or damage to, or loss of, equipment or property