The antonyms for the phrase "assumed role" would include words or phrases like "genuine identity," "authentic self," "natural persona," or "true character." Essentially, any term that indicates a person's genuine nature, rather than a role they are playing or pretending to be, could be seen as an antonym for "assumed role." Other possible antonyms might include terms like "transparent behavior," "clear intentions," or "open communication," all of which imply honesty, sincerity, and an absence of pretense or deception. In contrast, someone who is inhabiting an assumed role is often seen as insincere, manipulative, or inauthentic.