able, awkward, bizarre, blankminded, breakaway, callow, curious, different, dumb, empty-headed, empty, enigmatic, exotic, foreign, gauche, green, groping, ignorant, inane, incalculable, incognizable, incognizant, inexperienced, innocent, know-nothing, mysterious, naive, nescient, new, novel, oblivious, odd, offbeat, original, peculiar, puzzling, rare, raw, recherche, remarkable, sealed, simple, strange, strange to, sui generis, tentative, unaccustomed, unaccustomed to, unacquainted, unacquainted with, unapparent, unapprehended, unapprized, unascertained, unaware, unbeknown, uncharted, unclassified, uncommon, uncomprehending, unconventional, unconversant, unconversant with, uncustomary, undisclosed, undiscoverable, undiscovered, undivulged, undreamed-of, unenlightened, unexpected, unexplained, unexplored, unexposed, unfamiliar with, unfathomed, unheard-of, unheard, unidentified, unilluminated, uninformed, uninitiated, uninitiated in, uninstructed, unintelligent, uninvestigated, unique, unknowable, unknowing, unknown, unordinary, unperceived, unplumbed, unposted, unrevealed, unripe, unskilled in, unsure, unsuspected, unthought-of, untouched, unused to, unusual, unversed, unversed in, unwitting, unwonted, vacuous, virgin