What is another word for nonscheduled?
Pronunciation: [nˌɒnʃˈɛdjuːld] (IPA) 
The word "nonscheduled" refers to an event or task that is not pre-planned or scheduled in advance. There are several synonyms for this word, including unscheduled, impromptu, ad hoc, on-the-fly, spur-of-the-moment, off-the-cuff, and impulsive. These words all convey the idea of something that is done spontaneously, without prior planning or organization. Each of these words is applicable in different contexts, depending on the nature of the event or task at hand. For instance, "ad hoc" is often used in reference to a temporary or makeshift solution to a problem, while "impulsive" is more commonly used to describe a sudden decision or action taken without much thought or consideration.
