1.lacking general education or knowledge;
an ignorant man
2.ignorant of the fundamentals of a given art or branch of knowledge;
ignorant of quantum mechanics
3.lacking basic knowledge;
how can someone that age be so ignorant?
4.used of things; lacking sense or awareness;
ignorant hope
5.lacking knowledge or skill;
unversed in the jargon of the social scientist
6.lacking information or knowledge;
an unknowledgeable assistant