extemporize

verb 0.948

improvise

verb 0.802

improv

verb 0.676

expatiate

verb 0.581

contemporize

verb 0.561

play by ear

verb 0.559

rhapsodize

verb 0.548

freehand

verb 0.543

ad-lib

verb 0.541

temporize

verb 0.528

rhapsody

verb 0.524

elaborate

verb 0.516

wing it

verb 0.515

excogitate

verb 0.513

imprest

verb 0.506

devise

verb 0.503

freewrite

verb 0.502