unjaded

ignorant innocent simple sincere unsophisticated wide-eyed

aboveboard artless callow candid confiding countrified credulous forthright frank fresh green guileless gullible harmless impulsive ingenuous innocuous instinctive jejune lamb like a babe in the woods natural open original patsy plain simple-minded spontaneous square sucker unaffected unpretentious unschooled unsuspecting unsuspicious untaught unworldly virgin

aware experienced intelligent knowledgeable sophisticated

leery skeptical wise