As adjectives the difference between faultless and impeachable
is that faultless is without fault; free from defect or error while impeachable is able to be impeached (of a person).
faultless
English
Adjective
(
en adjective)
Without fault; free from defect or error.
Synonyms
* See also
Antonyms
* faulty
* faultful
* fallible
impeachable
English
Adjective
(
en adjective)
Able to be impeached (of a person).
That warrants impeachment (of an offence).