extempore

ex·tem·po·re
UK: /ɛkstˈɛmpɔː/  
atviksorð
  • án undirbúnings, af munni fram (speak, preach extempore)

Samheiti: ad-lib, extemporaneous, extemporaneously, extemporarily, extemporary, impromptu, off-the-cuff, offhand, offhanded, unrehearsed