extemporize Meaning, Definition & Usage

verb manage in a makeshift way; do with whatever is at hand
improvise.
- after the hurricane destroyed our house, we had to improvise for weeks
verb perform without preparation
improvise; ad-lib; improvize; extemporise.
- he extemporized a speech at the wedding

imperfect & past participle Extemporized; present participle & verbal noun Extemporizing

To speak extempore; especially, to discourse without special preparation; to make an offhand address.

To do, make, or utter extempore or off-hand; to prepare in great haste, under urgent necessity, or with scanty or unsuitable materials; as, to extemporize a dinner, a costume, etc.
Themistocles . . . was of all men the best able to extemporize the right thing to be done. Jowett (Thucyd. ).

Pitt, of whom it was said that he could extemporize a Queen's speech Lord Campbell.