Synonyms and related words :
artless, awkward, befoolable, blankminded, bluff, blunt, born yesterday, budding, callow, candid, childlike, confiding, credulous, cullible, deceivable, deludable, dependent, depending, dewy, direct, dumb, dupable, easy, empty, empty-headed, exploitable, foolable, frank, fresh, gauche, green, groping, growing, guileless, gullible, hoaxable, hoodwinkable, humbugable, ignorant, immature, impubic, inane, inexperienced, ingenu, ingenuous, innocent, intact, juicy, know-nothing, minor, nescient, new-fledged, open, openhearted, original, outspoken, persuadable, plain, raw, reliant, relying, ripening, sappy, seduceable, simple, simplehearted, simpleminded, sincere, single-hearted, single-minded, soft, strange to, susceptible, tender, tentative, trustful, trusting, trusty, unacquainted, unadult, unaffected, unapprized, unartificial, uncomprehending, unconversant, underage, undeveloped, unenlightened, unfamiliar, unfledged, unformed, unguarded, unilluminated, uninformed, uninitiated, unintelligent, unknowing, unlicked, unmellowed, unposted, unreserved, unripe, unschooled, unseasoned, unsophisticated, unstudied, unsure, unsuspecting, unsuspicious, unversed, unwary, vacuous, vernal, victimizable, virginal, without suspicion