The antonyms for the phrase "wert hostile to" would be different words that describe friendly and welcoming behavior. Some possible antonyms include "amiable," "approachable," "welcoming," "friendly," "cordial," "genial," "affable," and "sociable." These words all convey a sense of warmth and openness, which is the opposite of being hostile. Using antonyms can be helpful when trying to describe people or situations in a positive light, as they offer an alternative perspective to negative language. When looking for ways to express positive emotions or attitudes, antonyms provide a valuable resource for writers and speakers alike.