Antonyms of IMPROV

• deliberate, devise, drill, ceremonious, buttoned-up, design, rigid, stiff, Rehearsed, planned, dressed-up, plan, formal, written, read, routine, tell truth, bit, premeditated, official, premeditate, be real, prepared, disagree.

Synonyms of IMPROV

• off top of head, coin, whip up, immediate, spontaneous, down home, motley, easy, make do, cook up, unfussy, unrestrained, Extemporized, taking for ride, tossed out, automatic, unprepared, construct, ready, at first glance, sporty, on impulse, everyday, without ceremony, dash off, makes up, low pressure, folksy, Storify, by ear, ad lib, make, play it by ear, on-the-spot, jamming, fake it, shot from the hip, throwaway, originate, wing it, inconspicuous, meld, extemporize, made-up, jam, off-hand, making do, winging it, knock off, speak off the cuff, invent, do off top of head, unconstrained, improvise, democratic, expedient, off the cuff, fake, dream up, whipped up, hatch, Improviso, toss out, Autoschediastic, unplanned, on the spot, fictionalize, mellow, fuse, unstudied, natural, impromptu, straightforward, ADLIB, made up, extemporaneously, devise, brainstorm, throw together, unrehearsed, easygoing, Fabulize, thrown off, fix, free-and-easy, combine, compose, colloquial, slapdash, contrive, spur of the moment, prepare, concoct, toss off, spark, Familiar, breezy, homey, relaxed, unconventional, play by ear, unscripted, unpremeditated, thought out loud, mixed, winged, frank, spur-of-the-moment, fashion, unofficial, Improvisatory, merge, tossed off, formulate, fabricate, compound, extempore, Improvisate, open, made do, extemporary, Vamped, speaking off the cuff, mix, loose, free, casual, dashed off, make up, ad-lib, storified, blend, trump up, writes, low-pressure, write, makeshift, do off the top of your head, faked, improvised, join, ad hoc, do offhand, mingle, put together, laid back, off the top of one's head, offhand, informal, off the hip, frame, ordinary, off the top of head, extemporaneous, pretend, played by ear, unceremonious, intimate, congenial, snap, snapper, cool, urbane, off-the-cuff.