a novice at, a stranger to, awkward, benighted, blankminded, boorish, brainless, callow, crude, disaccustomed, discourteous, dumb, empty-headed, empty, foolish, fresh, gauche, green, green as grass, groping, gross, headless, ill-mannered, illiterate, immature, impolite, in the dark, inane, incognizant, inept, inexperienced, ingenuous, innocent, insensate, irrational, know-nothing, lackbrained, lean-minded, lean-witted, lowbrow, mindless, naive, nescient, new to, not bright, oblivious, of little brain, pea-brained, pin-brained, raw, reasonless, rude, rusty, senseless, simple, slackminded, slackwitted, strange to, tentative, unaccustomed, unaccustomed to, unacquainted, unacquainted with, unapprized, unaware, uncivil, uncomprehending, unconscious, unconversant, unconversant with, uncouth, uncultured, undeveloped, uneducated, unenlightened, unexperienced, unfamiliar, unfamiliar with, unfledged, ungifted, unhabituated, unhardened, unilluminated, uninformed, uninitiated, uninitiated in, uninstructed, unintellectual, unintelligent, uninured, unknowing, unlearned, unlettered, unmatured, unposted, unpracticed, unpracticed in, unprogressive, unread, unreasoning, unripe, unschooled, unseasoned, unskilled in, unsophisticated, unsure, untalented, untaught, unthinking, untrained, untried, untutored, unused, unused to, unversed, unversed in, unwise, unwitting, unwonted, vacuous, weaned, witless