The antonyms for the word "un-complimentary" include words that express praise, admiration, and validation. Some examples of antonyms for un-complimentary include complimentary, flattering, commendatory, laudatory, praiseful, and approving. These words are used to compliment and praise people, things, or situations. They are commonly used to express admiration, recognition, and appreciation. The antonyms for un-complimentary help to express a more positive outlook on the world and the people in it. By using positive language, we can build up and support those around us in a constructive and uplifting manner.