Caligynephobia is the fear of beautiful women.
The scientific word for such a fear or phobia is Venustraphobia or Caligynephobia.
Venustraphobia combines two Greek words: Venus which is the Greek Goddess representative of women and phobos which means deep aversion or fear.
Likewise, Caligynephobia is comprised of Greek words: calos meaning good or beautiful, gyne meaning woman and phobos which is fear. Caligynephobia takes the fear of beautiful women beyond the normal levels of fear as the individual has full-blown panic attacks and may embarrass himself at the mere thought of meeting or talking to good-looking women.