Ignorance

1. n. A willful neglect or refusal to acquire knowledge which one may acquire and it is his duty to have.
2. n. The condition of being ignorant; the want of knowledge in general, or in relation to a particular subject; the state of being uneducated or uninformed.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.