What is the process that is opposite to cell specialization?

Dedifferentiation is the process that is opposite to cell specialization. In this process, certain plant and animal cells revert back to being unspecialized cells within their own lineage. These plant and animal cells maintain their plasticity and also do not lose their ability to develop later on. As these cells are plastic, they are capable of transforming into various cell types and have different functions and abilities. It is important to note that dedifferentiation is not the same process as cells re-entering the life cycle. Instead, it indicates the reversal of a cell from its specialized state to its pluripotent state. Animals utilize this process to regenerate damaged or severed limbs. Humans are unable to carry out dedifferentiation.