impromptu
Improvisation
True
Any performance done without preparation is called an impromptu performance. Impromptu means "on the spot" or without preparation.
Hires aminadab
Carried out or performed with little or no preparation; impromptu.
Because this is a major operation on the eye, the surgeon will perform a very extensive evaluation of both eyes.
preparation is the gathering of the relevant and necessary resources while planning is the way of how and when the resources will be used to perform the activity or complete the project From Livy +2712 717 7559
India had little preparation for the tsunami.
The procedure generally takes from 90 minutes to two hours to perform, but the preparation and recovery time add several hours to the overall procedure time.
yes
Improvisation
It is a synonym for impromptu. It means without preparation. An example would be, "I gave an extemporaneous speech in English class today".