know nothing(n = noun.person) ignoramus, uneducated person - an ignorant person;
is a kind of unskilled person
has particulars: aliterate, aliterate person, illiterate, illiterate person, nonreader

come to nothing, desire to know, do nothing, for nothing, in the know, know, know all the answers, know apart, know backwards and forwards, know how, know no bounds, know the score, know well, know what's going on, know what's what, make nothing of, mere nothing, much ado about nothing, nothing, nothing of the kind, nothing special, out of nothing, royal society of london for improving natural know, think nothing of