Is Non Adaptable a Word?

Unadaptable | Definition of Unadaptable by Merriam-Webster.

What does non adaptable mean?

: not contributing to the fitness, performance, or survival of an organism or its parts : not arising by adaptation : not adaptive Organisms are integrated systems and adaptive change in one part can lead to nonadaptive modifications of other features …—

Is Unadaptability a word?

not able or willing to change or be changed in order to suit different conditions : He was a Southern gentleman and that made him unadaptable to life in the hustling Midwest.