What is the Antonym of cleave?

The antonym of "cleave" depends on the context. "Cleave" has two main meanings:

1. To split or divide: In this context, the antonym would be join, unite, merge, combine, fuse, etc.

2. To adhere strongly to something: In this context, the antonym would be abandon, forsake, reject, leave, depart from, detach, separate, etc.

Therefore, you need to consider the sentence in which "cleave" is used to determine the most appropriate antonym.