Compliant

Definitions: (1) ready or disposed to submit to a desire, demand, or proposal; (2) possessing a disposition to yield to others; flexible

Synonyms: acquiescent, consensual, obedient

Quote: The substance of the universe is obedient and compliant; and the reason which governs it has in itself no cause for doing evil, for it has no malice, nor does it do evil to anything, nor is anything harmed by it. But all things are made and perfected according to this reason.— Marcus Aurelius Antoninus Augustus (121-180) Roman Emperor and Philosopher

Comment: Sometimes compliance is the most appropriate quality, as the boughs of a tree in the wind.