extemporise

verb 0.948

improvise

verb 0.806

improv

verb 0.688

contemporize

verb 0.600

expatiate

verb 0.589

rhapsodize

verb 0.577

temporize

verb 0.572

ad-lib

verb 0.558

play by ear

verb 0.553

elaborate

verb 0.544

rhapsody

verb 0.533

freehand

verb 0.528

excogitate

verb 0.521

jazz

verb 0.520

expostulate

verb 0.517

dramatize

verb 0.517

extrapolate

verb 0.516

speechify

verb 0.515

excel

verb 0.511

soliloquize

verb 0.510

philosophize

verb 0.510

expound

verb 0.508

syncopate

verb 0.504

impasto

verb 0.502

ad lib

verb 0.501

wing it

verb 0.501

experiment

verb 0.500