Antonyms for the word "get-ups" would be "undress," "disrobe," "strip off," "doff," or "take off." While "get-ups" generally refers to clothing or an outfit, its antonyms signify the act of removing clothing. The word "get-ups" can also be used to describe someone's appearance or overall style, which makes the antonyms "plainness" or "unadorned" fitting alternatives. Additionally, "get-ups" can be replaced with "undecorated," "unembellished," or "unornamented" to describe something simple or plain. It's important to consider the surrounding context and meaning of a word when choosing an antonym to ensure it accurately conveys the intended message.