Antonyms for the phrase "calls a halt to" include "proceeds with," "continues," "resumes," "carries on," "persists," and "advances." These words imply that an action or activity is allowed or encouraged to expand or continue. Other antonyms might include "ignores," "neglects," "overlooks," or "abandons," which suggest a lack of interest or attention. The choice of antonym depends on the context in which the original phrase is used. Whether stopping an activity is positive or negative depends on the circumstances, as stopping to reflect and reassess can be just as beneficial as pushing forward with determination.