English

Definition of extemporize verb from the Oxford Advanced Learner's Dictionary

 

extemporize

 verb
(British English also -ise) verb
BrE BrE//ɪkˈstempəraɪz//
 
; NAmE NAmE//ɪkˈstempəraɪz//
 
[intransitive] (formal)Verb Forms present simple I / you / we / they extemporize
BrE BrE//ɪkˈstempəraɪz//
 
; NAmE NAmE//ɪkˈstempəraɪz//
 
he / she / it extemporizes
BrE BrE//ɪkˈstempəraɪzɪz//
 
; NAmE NAmE//ɪkˈstempəraɪzɪz//
 
past simple extemporized
BrE BrE//ɪkˈstempəraɪzd//
 
; NAmE NAmE//ɪkˈstempəraɪzd//
 
past participle extemporized
BrE BrE//ɪkˈstempəraɪzd//
 
; NAmE NAmE//ɪkˈstempəraɪzd//
 
-ing form extemporizing
BrE BrE//ɪkˈstempəraɪzɪŋ//
 
; NAmE NAmE//ɪkˈstempəraɪzɪŋ//
 
 
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to speak or perform without preparing or practising synonym improvise
See the Oxford Advanced American Dictionary entry: extemporize