sup·ple / ˈsəpəl/ • adj. (-pler, -plest) bending and moving easily and gracefully; flexible: her supple fingers | fig. my mind is becoming more supple. ∎ not stiff or hard; easily manipulated: this body oil leaves your skin feeling deliciously supple.• v. [tr.] make more flexible.DERIVATIVES: sup·ple·ly / ˈsəp(ə)lē/ (also sup·ply) adv.sup·ple·ness n.