Uncoöperative

These labourers were uncoöperative, had no interest at all in our investigations or were over-awed.

Why are people so surprised to find the Soviets distrustful and uncoöperative in their attitude toward the western powers?

No matter how he tries to subdue the recollection, it bothers him and causes constant psychological conflict. I gathered that much from his mannerisms, although he himself won’t divulge a thing. Very uncoöperative, in fact.