1. Without prior preparation
   "he spoke extemporaneously"
   - extemporarily, extempore

See also: extemporaneous

Encyclopedia: Extemporaneously

• post-hole digger
• post-horse
• post-Impressionism
• Post-impressionist
• Post-It
• post-maturity
• post-menopause
• post-mortem examination
• post-obit bond
• Post-Office box
• post-office box number
• post-rotational nystagmus
• postage
• postage meter
• postage stamp
• postal
• postal card
• postal clerk
• postal code
• postal order
• Postal Rate Commission
• postal service
• postal vote
• postbag
• postbiblical