Are men intimidated by intelligent women?

Perhaps, but I believe that it's more in one's attitude. If they use intelligence to belittle a man (or a woman) then it can be intimidating...not because of the intelligence but because of they try to establish an advantage, thus causing the other to go into defense mode. Intelligence, strength, or any other "stronger" trait needs to be paired with compassion so as to be less intimidating and more constructive.