The Oxford Thesaurus An A-Z Dictionary of Synonyms - ignorantadj.

1) unknowing, uninformed, untaught, uneducated, unschooled, unread, unlearned, unlettered, illiterate: Is there anyone so ignorant as not to know who the Duke of Wellington was? 2 unaware, unfamiliar, unconscious, benighted, unenlightened, unwitting, in the dark, oblivious, Formal nescient: She knows many things about which we are ignorant. 3) inexperienced, green, na‹ve, innocent, unsophisticated: They used to tease ignorant young apprentices by sending them to find a left-handed hammer. 4) uncouth, ill-mannered, discourteous, impolite, uncivil, boorish: Don't be so ignorant and open the door for the lady!