The antonyms for the phrase "center up on" could vary depending on the context in which it is used. However, some possible antonyms for this phrase include misalign, disperse, scatter, decentralize, deviate, diverge, stray, and wander off. These antonyms imply the opposite of the action of "centering up on" which means to focus or concentrate on a particular thing or point. To misalign or disperse, on the other hand, means to move away from a particular point or to spread out in different directions. Similarly, to decentralize or diverge means to move away from a central point or to move in different directions.