impeccable Meaning, Definition & Usage

  1. adjective satellite without fault or error
    immaculate; faultless.
    • faultless logic
    • speaks impeccable French
    • timing and technique were immaculate
    • an immaculate record
  2. adjective satellite not capable of sin

WordNet

Im*pec"ca*ble adjective
Etymology
L. impeccabilis; pref. im- not + peccare to err, to sin: cf. F. impeccable.
Definitions
  1. Not liable to sin; exempt from the possibility of doing wrong. -- n. One who is impeccable; esp., one of a sect of Gnostic heretics who asserted their sinlessness.
    God is infallible, impeccable, and absolutely perfect. P. Skelton.

Webster 1913