Oxford English and Spanish Dictionary, Synonyms, and Spanish to English Translator

Meaning of extemporaneously in English:

extemporaneously

adverb

‘It's pretty common to make this sort of error when one says something extemporaneously; as I've said before, just read some transcripts some time.’

‘She arrived to an enthusiastic ovation and spoke, as she almost always does, quite extemporaneously.’
‘I'm going to pose to each of them a question to which they will respond extemporaneously - no PowerPoint presentations, no viewgraphs.’
‘Her talent for extemporaneously getting into character in front of a camera has been widely acclaimed.’
‘In most instances, we were shooting on the streets extemporaneously.’