extemporization
Definitions
The act of composing, performing, or speaking something without prior preparation.
A performance or speech delivered spontaneously without a script or notes.
Examples
The jazz musician's brilliant extemporization during the solo left the audience in complete awe.
His speech was not prepared in advance, but rather a skillful extemporization that addressed the crowd's concerns perfectly.
Synonyms
improvisation ad-libbing spontaneity impromptu performance off-the-cuff remark
Antonyms
preparation rehearsal premeditation scripted performance planned delivery