mutability

US /ˌmjuː.t̬əˈbɪl.ə.t̬i/
UK /ˌmjuː.t̬əˈbɪl.ə.t̬i/
1.

mutabilidad

the ability to change or the fact of being likely to change:

:
He is interested in the mutability of identity, the way people can slip in and out of personas to fit the occasion.