Webster's Revised Unabridged Dictionary · 1913

flaccid

flaccid (flak"sid or flas"sid) , adjective

[Latin flaccidus, from flaccus flabby: compare Old French flaccide.]

Yielding to pressure for want of firmness and stiffness; soft and weak; limber; lax; drooping; flabby; as, a flaccid muscle; flaccid flesh.
Religious profession... has become flacced. — I. Taylor