The antonyms for the word "un-acquired" are "acquired," "obtained," "attained," "earned," and "gained." These words signify an object or attribute that has been obtained or achieved. When something is "un-acquired," it means that it has not been obtained or achieved yet. For example, if someone says, "I have un-acquired skills in this language," it implies that they do not possess proficiency in the particular language. Similarly, an "un-acquired property" refers to a property that is not yet owned by anyone. In short, "un-acquired" means something that has not been obtained, while its antonyms indicate the opposite- they signify a state of being acquired or gained.