The word "dismantled" means to take something apart or to strip it of its parts or structure. The opposite of dismantled is "assembled," where things are put together. Other antonyms for "dismantled" could be "built," "erected," "constructed," "formed," or "established." These words imply the act of creating or building something up, rather than breaking it down. Moreover, the term "maintained," which means to preserve or keep something in a certain condition, could also be an antonym for "dismantled." Therefore, using these words in sentences could help us create a better understanding of the meaning of "dismantled.