extemporally

/ɪkˈstɛmpərəli/
adverb
  1. In a way that is done or said without preparation; impromptu.
    • She answered the difficult question extemporally, surprising everyone with her quick thinking.
    • He spoke extemporally at the meeting, without any notes.
    • The band played extemporally, creating a unique melody on the spot.
Antonyms
What does "extemporally" mean? | whatsthatwordmean | whatsthatwordmean