[1] : WordNet (r) 2.0

know nothing
     n : an ignorant person syn: ignoramus, uneducated person
see also:
ignoramus uneducated person 

[2] : Moby Thesaurus II by Grady Ward, 1.0

96 moby thesaurus words for "know nothing":
   antiblack, awkward, be green, be ignorant, benighted, biased,
   blankminded, callow, chauvinistic, colored, dabbler, dilettante,
   dimwit, doctrinaire, dogmatic, dolt, dope, dumb, dummy, dunce,
   empty, empty-headed, fool, gauche, green, greenhorn, greeny,
   groping, headed, idiot, ignoramus, ignorant, illiterate,
   illiterati, inane, inexperienced, influenced, innocent, interested,
   jaundiced, know from nothing, lackwit, lowbrow, middlebrow, naive,
   nescient, no scholar, nonobjective, not know beans, one-sided,
   opinionated, partial, partisan, pinhead, prejudiced, prepossessed,
   puddinghead, racist, raw, rude, sexist, simple, strange to,
   superpatriotic, swayed, tenderfoot, tentative, twisted,
   ultranationalist, unacquainted, unapprized, uncomprehending,
   unconversant, undetached, undispassionate, uneducated,
   unenlightened, unfamiliar, unilluminated, uninformed, uninitiated,
   uninstructed, unintelligent, unintelligentsia, unknowing,
   unlettered, unposted, unripe, unsure, untaught, untutored,
   unversed, vacuous, wallow in ignorance, warped, xenophobic

Know Nothing >> K Words
Know Nothing, definition of term: Know Nothing
know+nothing_pag1.html

Know >> K Words
Know, definition of term: Know
know_pag1.html