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To be simultaneously arrogant and ignorant, leading to a condition where a person knows nothing but is too convinced of being correct to learn anything. Also see impermeable.

This word comes from the Politics/Religion messageboard, used to describe poster TheTerminator.
John is so argnorant that he wouldn't change his opinion if you gave him 50 pages of irrefutable facts.
by ogrejedi January 09, 2005
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