I believe he's a dying breed and, like all unadaptable life forms, will become extinct.
I couldn't understand why people were so unadaptable and stuck in their ways.
Charlotte Jones adapted Wilkie Collins's "unadaptable" novel The Woman in White.
There would be the temptation to make the movie an adaptation of the novel, and the novel is unadaptable.
Similar questions relating to fearful, unadaptable behavior in infancy and later internalizing are also posed.
If agreement had been reached the outcome would have been rigid and unadaptable.
The same applies to his observations warning us against it being too rigid or unadaptable.
They have a rigid mind: it is an unadaptable mind.