improvised

improvised
    adj 1: done or made using whatever is available; "crossed the
           river on improvised bridges"; "the survivors used jury-
           rigged fishing gear"; "the rock served as a makeshift
           hammer" [syn: {improvised}, {jury-rigged}, {makeshift}]
    

Improvise \Im`pro*vise"\, v. t. [imp. & p. p. {Improvised}; p.
   pr. & vb. n. {Improvising}.] [F. improviser, it.
   improvvisare, fr. improvviso unprovided, sudden, extempore,
   L. improvisus; pref. im- not + provisus foreseen, provided.
   See {Proviso}.]
   1. To compose, recite, or sing extemporaneously, especially
      in verse; to extemporize; also, to play upon an
      instrument, or to act, extemporaneously.
      [1913 Webster]

   2. To bring about, arrange, do, or make, immediately or on
      short notice, without previous preparation and with no
      known precedent as a guide.
      [1913 Webster +PJC]

            Charles attempted to improvise a peace. --Motley.
      [1913 Webster]

   3. To invent, or provide, offhand, or on the spur of the
      moment; as, he improvised a hammer out of a stone.
      [1913 Webster]
    

52 Moby Thesaurus words for "improvised":
      ad hoc, ad libitum, ad-lib, band-aid, caught napping,
      caught off balance, caught short, extemporaneous, extemporary,
      extempore, extemporized, haphazard, hasty, impromptu,
      improvisational, improvisatorial, improvise, improviso,
      jury-rigged, makeshift, makeshifty, off-the-cuff, offhand,
      precipitate, provisional, rough-and-ready, snap, stopgap,
      surprised, taken aback, taken by surprise, taken unawares,
      temporary, tentative, tripped up, unarranged, unbegun, unconcocted,
      uncontrived, undeliberated, undevised, unhatched, unmade,
      unmanufactured, unorganized, unplanned, unpremeditated, unprepared,
      unprimed, unready, unrehearsed, unstudied