The phrase "bring up the rear" means being in the last position in a group or a race. The antonyms for this phrase could be "lead the way," "be in front," or "take the lead." These words indicate being at the forefront or ahead of others, rather than lagging behind. Being at the front can signify leadership, initiative, and proactivity. Conversely, bringing up the rear can connote being cautious, hesitant, or slow to act. While there may be situations where it's necessary to bring up the rear, in most cases, taking the lead can result in more positive outcomes, opportunities, and growth.