The antonyms for the word "most xenophobic" are "least xenophobic," "tolerant," "open-minded," "accepting," and "welcoming." These terms describe individuals or groups with little or no fear or hatred towards people from different cultural or racial backgrounds. Such individuals or groups are characterized by a high level of respect, empathy, and understanding towards people from different parts of the world. Tolerance and acceptance of people from diverse cultural backgrounds lead to a more peaceful society and foster a sense of unity and cooperation among people of different races, religions, and nationalities.