n. The state or quality of being adaptive; capacity to adapt.
the GNU version of the Collaborative International Dictionary of English
n. The quality of being adaptive; capacity to adapt.
The Century Dictionary and Cyclopedia
n. The quality of being adaptive; capability of making or becoming fit or suitable.
Word Usage
"Nor can I regard myself as an exception, since, owing to a certain kind of adaptiveness in me, a sense of being at home wherever grass grows, I am in a way a native too."