What is another word for extemporaneous?
Pronunciation: [ɛkstˌɛmpɔːɹˈe͡ɪni͡əs] (IPA) 
Exttemporaneous refers to the ability to speak or perform without prior preparation or rehearsing. Some synonyms for extemporaneous include impromptu, spontaneous, off-the-cuff, unplanned, unrehearsed, improvised, unpremeditated, ad-lib, and improvisational. These synonyms can be used interchangeably depending on the context. For example, extemporaneous speaking may involve off-the-cuff remarks or impromptu remarks based on unexpected questions. An improvised performance may require the artist to create music or poetry spontaneously without preparation. In general, these words imply a lack of planning or preparation, often resulting in an honest and authentic performance.
