sup·ple 
(sŭpəl)
(sŭpəl)adj. sup·pler, sup·plest
1. Readily bent, folded, or manipulated; pliant: a wallet made of supple leather. See Synonyms at flexible.
2. Moving and bending with agility; limber: a supple gymnast.
3. Adaptable to changing circumstances: "The supple ambiguities of English are a large part of its genius" (Mark Abley).
tr. & intr.v. sup·pled, sup·pling, sup·ples
To make or become supple.
[Middle English souple, from Old French, from Latin supplex, suppliant; see plāk-1 in the Appendix of Indo-European roots.]
supple·ness n.
supply, supple·ly adv.