The concept of "ex-changed" refers to someone who has switched or switched places in some way. In terms of antonyms, one might consider words that signify stability or immovability, such as "settled," "fixed," or "stationary." Conversely, one might also consider antonyms that suggest movement or transition, such as "evolving," "developing," or "progressing." Ultimately, the antonyms for "ex-changed" will depend on the context in which the term is being used and the precise meaning that one wishes to convey. Whether emphasizing stasis or motion, however, antonyms can provide valuable contrast and nuance to language, helping to clarify and enrich meaning.