Is it so wrong for me to say that my father is narrowminded?

No. But it won't change him or your situation. And those you say it to may give you a hard time.

Not in the least - although you may not want to say it to his face, in that case :)

not if he can see through a keyhole with both eyes...

It's normal to be critical of your parents.

Even if you're right, it might be seen as disrespectful, that was popular in the 1950's when repression was rife and gave birth to the beatniks...:)

No, but it's wrong to be negative.

no..u got the right to say what u feel :)

Does he have a pointy head?

No it's not...

nope not at all

Nope

Only if he's not. My sister used to/still does think my dad is ignorant and stupid, but I think that's just her defense against his opinions that she doesn't like or agree with. It seems childish to me, but it may be different in your case.