Hyphenation
 un·re·hearsedTurkish pronunciation
 ınrihırstSynonyms
 ad-lib, 
extemporaneous, 
from the hip, 
impromptu, 
improvised, 
impulsive, 
not rehearsed, 
off the cuff, 
off the top of one’s head, 
spur of the moment, 
unpracticed, 
unpreparedPronunciation
 /ənrēˈhərst/ /ənriːˈhɜrst/
Etymology
  (prefix.)  Middle English, from Old English un-, on-, alteration of and- against; more at ANTE-.