The phrase "came to a halt" means to stop abruptly, but there are several antonyms or opposite words that can be used to convey the opposite meaning. These include "continued," "persisted," "proceeded," "advanced," "perservered," and "persevered." Instead of halting, one could choose to "accelerate," "revive," "renew," "march on," or "proceed smoothly." Whether it's a vehicle coming to a stop, an ongoing discussion losing its momentum, or a project coming to an end, antonyms for "came to a halt" can help convey a sense of continuous progress, movement, and growth.