Noun

(en noun)

(obsolete) The lack of provision, a failure to provide something.

*1646 , Sir Thomas Browne, Pseudodoxia Epidemica , III.2:

*:there would be a main defect, and her improvision justly accusable, if such a feeding animal [...] should want a proper conveyance for choler, or have no other receptacle for that humour than the veins and general mass of blood.

Noun

(en noun)

The act of improvising, or something improvised; improvisation

*{{quote-magazine

, year=1948 , author=Alexander Maxwell , title=Gauges—the Guide to Perfection , date=October 1948 , volume=90 , issue=4 , page=250 , magazine=Popular Mechanics , publisher=Hearst Magazines , issn=0032-4558 citation , passage=A similar improvision , a modification of the device used to measure the planar ways (photo 8), makes several measurements at once. }}

*{{quote-book

, year=1987 , year_published=1988 , publisher=University of California Press , author=John Davis , title=Libyan Politics: Tribe and Revolution: An Account of the Zuwaya and their Government , chapter=The Libyan Contribution citation , isbn=9780520062948 , page=248 , passage=It was a revolution grounded in exoterics, which may account in some part for the general air of naivety and improvision which surrounds it.}}

*{{quote-book

, year=1991 , publisher=Taylor & Francis , editor=David Williams , author=Martine Millon and Oliver Ortolanai , quotee=Yoshi Oida , title=Peter Brook and the Mahabharata: Critical Perspectives , chapter=Energy and the Ensemble: Actors' Perspectives , volume_plain=Part II Practitioners' accounts citation , isbn=9780415047784 , page=108 , passage=There are two general conceptions of improvision . The first, commonly applied is of a rather romantic woolly kind. It suggests that anything can happen in improvisation.}}

*{{quote-book

, year=2005 , publisher=Jessica Kingsley Publishers , author=Daniel Gilbert Perret , title=Roots of Musicality: Music Therapy and Personal Development , section=Appendix 7: Improvisation Techniques in Music Therapy citation , isbn=9781843103363 , page=177 , passage=Tonal centring: Providing a tonal centre, scale, or harmonic ground as a base for the client's improvision }}