Undressed is a word used to describe a situation where someone is not properly dressed, without clothes, or not appropriately dressed. Some common antonyms for undressed include dressed, dressed up, suited, groomed, adorned, and prepped. Dressed refers to being properly attired, groomed, or adorned for a particular occasion or event. Suited, adorned, and prepped are other antonyms that reflect being more appropriately dressed or prepared for a particular purpose. Additionally, dressed up is a more formal antonym for undressed that refers to putting on special clothing or accessories for a particular occasion. By knowing the antonyms for undressed, you can better communicate what type of attire is appropriate for any given situation.