offhand, snide, condescending, glib, quippy, ineloquent, flippant, unquotable, sarky, tactless, epigrammatic, brusk, unamusing, wry, sarcastic, teacherly, snarky, schoolmarmish, insouciant, impolitic, unoffensive, deprecatory, blithe, jocular, reproachful, indiscrete, droll, derisive, bromidic, unexceptionable, curt, pithy, praiseful, affectless, jocose, nonracist, meanspirited, acerbic, irenic, unpresidential, parodic, zipless, deprecating, unsubtle, jokey, witty, pantomimic, disobliging, sophomoric, ribald, winkingly, slangy, unpoetic, anomic, mealymouthed, ungrammatical, dismissive, uninflected, singsong, platitudinous, ingratiating, womanish, crass, ungracious, brusque, contemptuous, rebarbative, sardonic, unchivalrous, bon mot, unenlightening, mirthless, unrevealing, impertinent, indecorous, inapt, unilluminating, charming, ethnic slur, unsensational, captious, uproarious, snotty, untempered, ex cathedra, hilarious, irreverent, bigoted, unapologetic, fatuous, brooklynese, barbed, sly, sneery, overfamiliar, caustic, politically incorrect, humoristic, churlish, tu quoque, gratuitous, uncouth, nonchalant, ironical, patronising, disrespectful, scornful, careless, cheek, discourteous, disdainful

ad-lib, careless, extemporaneous, extemporary, extempore, off-the-cuff, offhand, offhandedly, unprepared, unrehearsed