The antonyms for the phrase "most unaroused" can be "excited", "stimulated", "enthused", "animated", "interested", "aroused", "activated" and "roused". Antonyms are words that have opposite meanings to the given word or phrase. If someone is most unaroused, it means they are not stimulated, excited or interested in something. On the contrary, if they are excited or stimulated, it means they are feeling energized and lively. Having a good vocabulary of antonyms can help in effectively communicating and understanding the different contexts of a given situation.