adj. 25B6; adjective
a genuine Picasso : AUTHENTIC, real, actual, original, bona fide, true, veritable; attested, undisputed; informal pukka, the real McCoy, the real thing, kosher; Austral./NZ informal dinkum.
a very genuine person : SINCERE, honest, truthful, straightforward, direct, frank, candid, open; artless, natural, unaffected; informal straight, upfront, on the level; N. Amer. informal on the up and up.
bogus, insincere.