The phrase "fetches up" refers to coming to a halt or ending up in a particular place or situation. Antonyms for "fetches up" include the actions of launching, initiating, beginning, starting, or embarking upon something. Instead of "fetching up" somewhere, one might "set out," "take off," "depart," "commence," or "kick off" a journey, project, or activity. Antonyms for "fetches up" also include "continues," "proceeds," "advances," or "moves forward" when referring to progress, growth, or development. In essence, antonyms for "fetches up" represent movement, momentum, and action rather than a static state of being.