Arrogant

1. a. Containing arrogance; marked with arrogance; proceeding from undue claims or self-importance; — applied to things; as, arrogant pretensions or behavior.
2. a. Making, or having the disposition to make, exorbitant claims of rank or estimation; giving one’s self an undue degree of importance; assuming; haughty; — applied to persons.

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.