improvisation

Etymology

The OED, in its 2015 revision, takes it as formed in English: in early use probably from English improviso + -ation, improviso being an adjective and verb meaning extempore, and in later use from improvise with the same suffix.^[2] It compares German Improvisation (1790 or earlier), French improvisation (1807) and Italian improvvisazione (1877).^[2] The Shorter Oxford derives it from improvisatore or improvisator.^[3] Etymonline and Barnhart instead take it from that French word,^[4][5] from improviser (“to compose or say extemporaneously”),^[4][5] which is from Italian improvvisare (“to sing or speak extempore”),^[6][5][4] from improvviso (“unforeseen; extempore”),^[6][7] from Latin imprōvīsus (“unforeseen, unexpected”),^[6][2][4] formed from in- (“not”) and prōvīsus (“foreseen”), the past participle of prōvideō (“to foresee, provide”).^[6][4][7] The Italian adjective was used of compositions in verse or music from the late 15th century.^[2] Ayto notes that, etymologically, what is improvised has not been "provided" for in advance.^[7]

Earliest recorded meaning

Composing or performing music, poetry or drama on the spot, without preparation: the OED's first record is from 1777, in H. L. Thrale's diary.^[2] Etymonline, Barnhart and Merriam-Webster date the word to 1786,^[4][5][8] and Hoad and Ayto to the 18th century.^[9][7]

Semantic evolution

The word came in with the musical and poetic sense, and an example of such work, a poem or piece composed on the spot, is recorded from 1824.^[2][4] From 1833 it was used of doing anything on the spur of the moment, or making do with what is to hand,^[2] following the verb improvise, which spread in the same way from performing extempore (1788) to making something from whatever is available (1834).^[2][4] The adjective improvisational is formed from it.^[10][3]

Timeline

• 1777 – composing or performing music, poetry or drama without preparation.^[2] Etymonline, Barnhart and Merriam-Webster date it to 1786.^[4][5][8]
• 1824 – a piece of music or poetry composed or performed so.^[2]
• 1833 – doing anything spontaneously, or making do with what is available.^[2]

Meanings

Noun

1. The act or art of improvising: making up music, verse, drama or speech as one performs, without preparation.^[6][8][10]
2. Something improvised, such as a passage of music or a comic skit: The pianist ended the concert with a long improvisation.^[6][10][2]
3. A course of action taken without any plan worked out in advance; making do with what is at hand.^[8][2]

Word family

• improvisational
• improvisationally

Related words

• improvise
• provide
• proviso
• improvisatore

References

1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k l m Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
4. ^ a b c d e f g h i Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
5. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
6. ^ a b c d e f The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
7. ^ a b c d Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
8. ^ a b c d Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
9. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
10. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins