English to English

noun (n)

• a performance given extempore without planning or preparation

  pertunjukan diberikan spontan tanpa perencanaan atau persiapan

  Synonym:
  extemporisation, improvisation
  

  source: wordnet30
• The act of extemporizing; the act of doing anything extempore.

  tindakan extemporizing; tindakan melakukan sesuatu spontan.

  source: webster1913