The phrase "be the edge" can mean being at the forefront or leading position in a particular area. The antonyms for this phrase would be "fall behind" or "lag behind." These indicate a slower rate of progress or a lack of advancement compared to others. Other antonyms for "be the edge" could include "bystander" or "follower," implying a passive role rather than an active one. Additionally, the words "retreat" or "withdraw" could be used as antonyms, suggesting a move away from progress or from the forefront. It is important to note that the antonym for a phrase may vary depending on the context in which it is used.