Synonyms to firmly

bona fide, aboveboard, attested, authentic, candid, card-carrying, consistently, constantly, devotedly, dinkum, fair and square, faithfully, following the letter, foursquare, genuine, good, good-faith, honest, honest-to-God, in good faith, inartificial, indubitable, lawful, legitimate, lifelike, literal, loyally, natural, naturalistic, on the level, on the square, on the up-and-up, open, open and aboveboard, original, pure, real, realistic, responsibly, rightful, simon-pure, simple, sincere, single-hearted, square, square-dealing, square-shooting, staunchly, steadfastly, steadily, sterling, straight, straight-shooting, sure-enough, true, true to life, true to nature, true to reality, unadulterated, unaffected, unassumed, unassuming, uncolored, unconcocted, uncopied, uncounterfeited, undisguised, undisguising, undistorted, undoubted, unexaggerated, unfabricated, unfanciful, unfeigned, unfeigning, unfictitious, unflattering, unimagined, unimitated, uninvented, unpretended, unpretending, unqualified, unquestionable, unromantic, unsimulated, unspecious, unsynthetic, unvarnished, up-and-up, vali