Arrignorance

a simple contraction of arrogance and ignorance, it describes the argumentative process where one is arrogantly insistent they are authoritative on a topic on which they are clearly ignorant, or one's inability to accept they may be incorrect because it is below them.

"The arrignorance of this leader is astounding; he truly believes he is completely without fault on all fronts, and labels any evidence to the contrary as racism, junk science or white supremacy."

"Do not argue with ME! I know FOR A FACT that the McDonalds cheeseburger patty recipe was stolen DIRECTLY from the Chum Bucket chain!"

"I've flown here today in my private jet to let you know we are making the planet a better place by supplying you with a paper straw for your plastic cup."