Im·pro·vise v. t. [imp. & p. p. Improvised p. pr. & vb. n. Improvising.]
1. To compose, recite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, extemporaneously.
2. To bring about, arrange, do, or make, immediately or on short notice, without previous preparation and with no known precedent as a guide.
Charles attempted to improvise a peace. --Motley.
3. To invent, or provide, offhand, or on the spur of the moment; as, he improvised a hammer out of a stone.
improvised
adj : 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: jury-rigged, makeshift]