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Impromptu vs Extemporize - What's the difference?

impromptu | extemporize |

As a adjective impromptu

is improvised; without prior preparation, planning or rehearsal; extemporaneous; unplanned.

As a noun impromptu

is (music) a short musical composition for an informal occasion often with the character of improvisation and usually to be played solo.

As a verb extemporize is

to do something, particularly to perform or speak, without prior planning or thought; to act in an impromptu manner; to improvise.

impromptu

English

Adjective

(-)
  • Improvised; without prior preparation, planning or rehearsal; extemporaneous; unplanned.
  • The party began with an impromptu rendition of 'Happy Birthday'.

    Synonyms

    * See also

    Noun

    (en noun)
  • (music) a short musical composition for an informal occasion often with the character of improvisation and usually to be played solo.
  • any composition, musical or otherwise, that is created on the spot without preparation.
  • extemporize

    English

    Alternative forms

    * extemporise (mostly Commonwealth)

    Verb

    (extemporiz)
  • To do something, particularly to perform or speak, without prior planning or thought; to act in an impromptu manner; to improvise.
  • * 1881 , , Mary Marston , ch. 35:
  • "Will you please tell me whose music you have been playing?" . . .
    "It's nobody's, miss."
    "Do you mean you have been extemporizing all this time?"
  • * 2009 March 5, , " The (very) scripted president," New York Times (retrieved 8 Nov 2011):
  • But while some of his predecessors liked to extemporize , Obama prefers the message to be just so.
  • To do, create, improvise, adapt, or devise in an impromptu or spontaneous manner.
  • * 1860 , , The Marble Faun , ch. 10:
  • As the music came fresher on their ears, they danced to its cadence, extemporizing new steps and attitudes.
  • * 1879 , , Evolution, Old & New , ch. 5:
  • The small jelly-speck, which we call the amoeba, has no organs save what it can extemporize as occasion arises.
  • * 1906 , , The Dynasts , Part Second, Act Third:
  • The wine runs into pitchers, washing-basins, shards, chamber- vessels, and other extemporized receptacles.
  • * 2003 Aug. 25, Emily Eakin, " How King Shaped The Dream," New York Times (retrieved 8 Nov 2011):
  • His most famous words — "I have a dream" — were extemporized .

    Synonyms

    * (intransitive) improvise, think on one's feet * (transitive) devise, improvise

    See also

    * play it by ear * off the cuff * off the top of one's head