The phrase 'most universally' refers to something that is widely accepted or agreed upon by the majority of people across the world. There are several synonyms that can be used in place of this phrase, such as 'globally', 'internationally', 'universally', 'worldwide', 'across the world', 'throughout the world', 'in every corner of the world', 'in all parts of the world', 'across nations' or 'across cultures'. These synonyms emphasize that the particular idea or concept is being accepted and recognized by people of different backgrounds, cultures, and nationalities. Using these synonyms, writers and speakers can convey the same meaning while adding variety and depth to their language.