The phrase "in dishabille" implies a state of untidiness or disarray, usually in reference to clothing or appearance. Its antonyms, therefore, would imply a state of neatness, orderliness, or smartness. Words like "dressed up," "tidy," "neat," "well-groomed," "put-together," and "polished" could be used to describe the opposite of "in dishabille." These antonyms suggest a level of effort and attention to detail in one's appearance, which is lacking in the state of dishevelment implied by "in dishabille." Choosing the right words to describe a state or situation helps to create a clear picture in the minds of those who hear or read the description.