THESAURUS
unacquainted with
a novice at, a stranger to, awkward, blankminded, callow, disaccustomed, dumb, empty, empty-headed, fresh, gauche, green, green as grass, groping, ignorant, immature, inane, inexperienced, innocent, know-nothing, naive, nescient, new to, raw, rusty, simple, strange to, tentative, unaccustomed, unaccustomed to, unacquainted, unapprized, uncomprehending, unconversant, unconversant with, undeveloped, unenlightened, unexperienced, unfamiliar, unfamiliar with, unfledged, unhabituated, unhardened, unilluminated, uninformed, uninitiated, uninitiated in, unintelligent, uninured, unknowing, unmatured, unposted, unpracticed, unpracticed in, unripe, unseasoned, unskilled in, unsure, untrained, untried, unused, unused to, unversed, unversed in, unwonted, vacuous, weaned
