Olympian, Spartan, aboveboard, accessible, all jaw, approachable, artless, ascetic, austere, authentic, bald, bare, bluff, blunt, bona fide, born yesterday, broad, brusque, card-carrying, chatty, childlike, common, commonplace, communicative, confiding, conversable, conversational, demonstrative, detached, dinkum, direct, disinterested, dispassionate, downright, dry, dull, effusive, equal, equitable, expansive, explicit, extroverted, fair, flip, fluent, following the letter, forthright, frank, frankhearted, free-acting, free-going, free-moving, free-speaking, free-spoken, free-tongued, free, free hand, freehanded, gabby, garrulous, gassy, genuine, glib, good, gossipy, gregarious, guileless, gushy, heart-to-heart, homely, homespun, honest-to-God, honest, impartial, impersonal, impromptu, inartificial, informal, ingenu, ingenuous, innocent, just, lawful, lean, legitimate, lifelike, literal, lofty, long-winded, loquacious, matter-of-fact, multiloquent, multiloquious, naive, native, natural, naturalistic, neat, neutral, newsy, objective, open, openhearted, original, outgoing, outspoken, overtalkative, plain-speaking, plain-spoken, plain, prolix, prosaic, prosing, prosy, pure, real, realistic, rightful, round, rustic, scrupulous, self-revealing, self-revelatory, selfless, severe, simon-pure, simple-speaking, simple, simplehearted, simpleminded, sincere, single-hearted, single-minded, smooth, sober, sociable, spare, stark, sterling, straight-out, straight, straightforward, sure-enough, talkative, talky, transparent, true to life, true to nature, true to reality, trustful, trusting, truthful, unadorned, unadulterated, unaffected, unartificial, unassumed, unassuming, unbiased, unbigoted, uncalculated, uncalculating, unchecked, uncolored, unconcealed, unconcocted, unconstrained, uncontrived, uncopied, uncounterfeited, undeceitful, undeceiving, undisguised, undisguising, undissembled, undissembling, undistorted, unequivocal, unexaggerated, unfabricated, unfanciful, unfeigned, unfeigning, unfictitious, unflattering, unguarded, unhampered, unimaginative, unimagined, unimitated, uninfluenced, uninvented, unpoetical, unprejudiced, unpremeditated, unpretended, unpretending, unpretentious, unqualified, unrepressed, unreserved, unrestrained, unrestricted, unreticent, unromantic, unsecretive, unselfish, unshrinking, unsilent, unsimulated, unsophisticated, unspecious, unsuppressed, unsuspicious, unswayed, unsynthetic, unvarnished, unwary, upright, verbal, verbatim, verbose, veridical, verisimilar, voluble, windy, word-for-word