Antonyms for the phrase "put oneself out" could be "relax", "take it easy", or "rest". These words imply a lack of effort or exertion on the part of the individual. Alternatively, "withdraw", "retire", or "retract" could be used as antonyms, suggesting that the person is actively avoiding involvement or participation. "Disengage" is also a possible antonym, indicating that the individual is standing back from a situation rather than immersing themselves in it. In each case, the opposite of "putting oneself out" implies a distinct lack of effort, commitment, or involvement on the part of the person in question.