Bible Dictionaries
Impeccable

Webster's Dictionary

(1):

(a.) Not liable to sin; exempt from the possibility of doing wrong.

(2):

(n.) One who is impeccable; esp., one of a sect of Gnostic heretics who asserted their sinlessness.

Bibliography Information
Webster, Noah. Entry for 'Impeccable'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/impeccable.html. 1828.