The phrase "keeps arm's length" means to maintain a certain distance or reserve towards someone or something. Antonyms for this phrase could include "embraces," "welcomes," "embraces closely," or "hugs." These words convey a sense of closeness, warmth, and intimacy, which are the opposite of the detached and cautious attitude implied by "keeps arm's length." Other antonyms could include "befriends," "connects with," or "opens up to," which suggest a willingness to engage with others and form meaningful relationships. Ultimately, the choice of antonym will depend on the context and the specific connotations desired by the writer or speaker.
