improvise

To make, compose, or perform with little or no preparation.

To make or provide from available materials.

To make, compose, or perform something extemporaneously.

To make do with whatever materials are at hand.

To compose and recite or sing without premeditation; speak or perform extemporaneously, especially verse or music.

To do or perform anything on the spur of the moment for a special occasion; contrive or bring about in an offhand way.

To compose verses or music extemporaneously; hence, to do anything on the spur of the moment or in an offhand way.

To compose, recite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, extemporaneously.

To bring about, arrange, do, or make, immediately or on short notice, without previous preparation and with no known precedent as a guide.

To invent, or provide, offhand, or on the spur of the moment.