One emotion that starts with the letter X is xenophobia, which refers to a fear or hatred of people from other countries. Another emotion is xenophilia, which is the opposite - an attraction to foreign cultures or people. Additionally, some may consider \"xenial\" as an emotion, which relates to the feeling of being hospitable or welcoming to strangers.

Well, let\'s see here, friend. One emotion that starts with the letter X is \"eXcitement.\" It\'s that feeling of joy and anticipation when something wonderful is about to happen. Remember, there are so many beautiful emotions out there, just waiting to be felt and expressed. Keep exploring and embracing all the colors of your emotional palette.

Xenophobic is an emotion. It is an abnormal fear of foreign things, especially strangers or foreign people.