The antonym for the phrase "beating back" can vary depending on the context in which the phrase is used. Some possible antonyms for "beating back" include "advancing," "progressing," "succeeding," "gaining ground," and "pushing forward." These words suggest the opposite of beating back, which implies a confrontation or struggle that is being resisted or pushed back. In contrast, advancing and progressing suggest moving forward and making progress, while succeeding and gaining ground suggest achieving success in a particular endeavor. Finally, pushing forward suggests taking an active approach to achieving one's goals, rather than simply resisting or defending against external pressures.