1. 
   extemporaneously
   [adv] - without prior preparation
   Found op http://www.webdictionary.co.uk/definition.php?query=extemporaneously
   
   
2. 
   extemporaneously
   extemporarily adverb without prior preparation; `he spoke extemporaneously`
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=extemporaneously
   
   
3. 
   extemporaneously
   extemporaneously In an extemporaneous manner.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2105/
   
   
4. 
   extemporaneously
   1) Extemporarily 2) Extempore 3) Without prior preparation
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/extemporaneously/1
   
   

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