slewpid

Noun: Dumb to the point of ignoring factual evidence rebutting an argument. Obstinately stupid.

Adjective: To make oneself appear incredibly uneducated and obtuse, either intentionally or unintentionally.

noun: The definition from Webster's right in front of him, he was too slewpid to ascertain the meaning.

verb: The slewpid blogger didn't understand his posting invalidated his point.