Antonyms for "most identified" can be "least identified" or "unidentified". If something is "least identified" then it is not easily recognized or distinguished. On the other hand, "unidentified" means that the object, person, or situation is unknown or cannot be recognized. These antonyms are useful in situations where you want to describe a level of identification or recognition. For example, if you are talking about a celebrity, you can say that they are "most identified" with a certain role, but their personal life may be "least identified" or "unidentified" to the general public.