improvisate (verb) extemporize: improvise
Sinonime: adorning, advancing,
artistic, beautifying,
beneficial, broadening, civilizing,
constructive, corrective, developmental, dignifying, disciplining, edifying, educative, elevating, ennobling, enriching, expanding, glorifying,
helpful,
humane, humanizing,
influential, inspirational, instructive,
learned,
liberal, liberalizing,
nurturing, ornamenting, polishing, promoting, raising,
refined, refining, regenerative, socializing,
stimulating,
uplifting, widening
Antonime: plan,
prepare,
read, rehearse