The opposite of open-minded (
DUH-
uh!).
Many people are under the mistaken impression that the first person who says "You'
re just being closed-minded" in a debate is automatically the winner; frequently, the first person who says this has simply run out of
facts.
Contrary to popular belief, it's also not always bad to be closed-minded, especially towards ideas which are easily demonstrated to be false or foolish.