n. The condition of being uninformed or uneducated. Lack of knowledge or information.
the GNU version of the Collaborative International Dictionary of English
n. The condition of being ignorant; the lack of knowledge in general, or in relation to a particular subject; the state of being uneducated or uninformed.
n. A willful neglect or refusal to acquire knowledge which one may acquire and it is his duty to have.
The Century Dictionary and Cyclopedia
n. The state of being ignorant; want of knowledge in general, or concerning some particular matter; the condition of not being cognizant, informed, or aware.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the lack of knowledge or education
Word Usage
"There is an ignorance that is sought on purpose, called _affected ignorance_ (in the Shakspearian sense of the word _affect_), as when a man will not read begging-letters, that he may not give anything away."