Having the joints flexible; hence gen. pliant, soft.

Supple-jointed, lissome.

Of a living creature, or of the muscles, limbs, face, etc.: stiff, rigid, lacking suppleness and pliability (through weakness, overexertion, fear…

Of the body, limbs, joints, muscles, etc.: lacking suppleness, unable to move without pain (esp. owing to age, cold, injury, disease, exhaustion…

Of a body part: in an upright position; standing up or on end. Of the penis: erect. Also (rarely) of the eyes: projecting.

Supple, lithe, limber.

Physically agile, nimble; (of the body or a limb) supple, flexible; (of an object) pliable. Later also: able, powerful; active; vigorous (apparently…

Softened; slack, relaxed. Obsolete. rare.

Capable of bending easily; moving easily, nimbly, or gracefully. Of the body, limbs, etc. See also supple knee n. at compounds 1.

In physical sense: Loose, lax, relaxed. Obsolete.

Of persons, their bodies, movements, etc.: Bending or moving easily; lithe and nimble.

That sags (in various senses of the verb).

made loose or slack, relaxed.

Unrelaxed.

Of a person or animal: lively; energetic; agile. Also of the muscles or limbs: supple and strong.

Very tall and thin, and loose-jointed or awkward in gait or bearing; = gangly, adj. 1.

Pliant, supple, agile; = lissom, adj.

Supple; lithe and nimble; smart.

(un-, prefix1 affix 2.)

Supple, limber; lithesome; lithe and agile.

Of a thing: Flexible, supple. Of a person: Lithe, agile, nimble.

Of the joints: Slack, relaxed from weakness. Also, of a person's ‘build’: Ungainly, looking unsuited for brisk movement.

Unslackened, unrelaxed.

Apt to ‘sag’ (see quots.).

Of a person or animal: very tall and thin, and loose-jointed or awkward in gait or bearing; lanky. Also: characteristic of such a person or…