The phrase "brings to a standstill" indicates a complete cessation of activity. Antonyms for this phrase might include "propels forward," "spurs on," "activates," or "energizes." Rather than immobilizing, these words suggest movement, progress, and growth. Examples might include a company that is propelled forward by a new product launch, a team that is energized by a motivational speech, or an individual who is spurred on by a challenge. These antonyms convey a sense of positivity and ambition, in contrast to the stagnation and frustration implied by the phrase "brings to a standstill.