a. [ L. impeccabilis; pref. im- not + peccare to err, to sin: cf. F. impeccable. ] Not liable to sin; exempt from the possibility of doing wrong. --
God is infallible, impeccable, and absolutely perfect. P. Skelton. [ 1913 Webster ]
a. [ Cf. F. peccable. See Peccant. ] Liable to sin; subject to transgress the divine law. “A frail and peccable mortal.” Sir W. Scott. [ 1913 Webster ]