extemporise extemporisation • extemporization · · · Info · Definitions · Synonyms · Characters · · extemporise · · Text Latin · · Script 11 · · Length 4 · · Syllables Definitions · · · (verb) perform without preparation. Synonyms: improvise, improvize, ad-lib, extemporize. Example: "He extemporized a speech at the wedding." · · Verb Definition 1 Synonyms · · · improvise · · Synonym 1 improvize · · Synonym 2 ad-lib · · Synonym 3 extemporize · · Synonym 4 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078