The phrase "brings up short" implies a sudden halt or interruption. Some antonyms for this phrase could include "carries on," "proceeds," "continues," "advances," or "persists." These words suggest a sense of progression, movement or persistence, in contrast to the idea of being abruptly halted. Other antonyms could include "ignores," "neglects," or "disregards," which imply a lack of attention or consideration rather than an abrupt stop. Ultimately, the antonym for "brings up short" depends on the context in which it is used and the specific idea being communicated.