31. With them the original oak roof was destroyed and replaced by an extemporaneous roof. 32. After a brief, extemporaneous introduction, he'd read us all to sleep. 33. We knew these were not extemporaneous speeches. 34. Extemporaneous An extemporaneous presentation is prepared, outlined and rehearsed but not written in detail.35. Extemporaneous An extemporaneous presentation is prepared, outlined and rehearsed but not written in detail. 36. It was an uncharacteristically spontaneous revision for a speaker who did not trust extemporaneous speech. 37. He tells his friends this, narrating an apparently extemporaneous legend to support his assumption. 38. She received 26th place in Extemporaneous Commentary. 39. More extemporaneous statements from Deion Sanders. 40. He was a great extemporaneous speaker, very much at home speaking, using correct language.