Definition of "ignorant" in English

adjective

1. Unknowledgeable or uneducated; characterized by ignorance.

2. Not knowing (a fact or facts), unaware (of something).

   • 1851, Walt Whitman, “Art and Artists” in Emory Holloway (editor), The Uncollected Poetry and Prose of Walt Whitman, Garden City, NY: Doubleday, Page & Co., 1921, Volume 1, p. 242, […] perhaps it is sometimes the case that the greatest artists live and die, the world and themselves alike ignorant what they possess.

3. (slang) Ill-mannered, crude.

   • His manner was at best off-hand, at worst totally ignorant.

4. (obsolete) Unknown; undiscovered

   • 1845, Robert Browning, letter addressed to Elizabeth Barrett Browning, cited in Percy Lubbock, Elizabeth Barrett Browning in Her Letters, London: Smith, Elder & Co., 1906, Chapter 4, p. 106, […] as to you, your goodness and understanding will always see to the bottom of involuntary or ignorant faults—always help me to correct them.

5. Resulting from ignorance; foolish; silly.

noun

1. One who is ignorant.