Fetching up can mean different things depending on the context, but its antonyms largely involve movement and departure. For instance, some of the antonyms for fetching up include departing, leaving, starting, beginning, commencing, and moving away. These words depict the opposite of settling, which is one possible meaning of fetching up. On the other hand, the term can also mean being thrown up, ending up, or landing on shore or a particular place, in which case its antonyms include splashing down, departing, sinking, and drifting off. In essence, the antonyms for fetching up generally convey mobility, departure or the opposite of settling.