awkward, blankminded, blind, blindfold, blindfolded, callow, dim-sighted, dumb, empty-headed, empty, gauche, green, groping, ignorant, imperceptive, impercipient, inane, inexperienced, innocent, insensible, know-nothing, mind-blind, myopic, naive, nearsighted, nescient, nonunderstanding, purblind, raw, shortsighted, simple, strange to, tentative, unacquainted, unapprehending, unapprized, unconversant, undiscerning, unenlightened, unfamiliar, unilluminated, uninformed, uninitiated, unintelligent, unknowing, unperceptive, unposted, unripe, unsure, unversed, vacuous