What is another word for without rehearsal?
Pronunciation: [wɪðˌa͡ʊt ɹɪhˈɜːsə͡l] (IPA) 
When it comes to performing without any prior practice or rehearsal, there are several synonyms that can be used. The first of these is impromptu, meaning spontaneous or without preparation. Another similar word is extemporaneous, which refers to something done on the spur of the moment. Similarly, ad-lib, which refers to improvising or making up something on the spot, can also be used. Additionally, spur-of-the-moment, unplanned, and unprepared are all synonyms that can be used to describe performing without rehearsal. Regardless of which word is used, the end result is the same - a performance executed without the benefit of prior practice or preparation.
