Greek
G571
ἄπιστος
Definition
(actively) disbelieving, i.e. without Christian faith (specially, a heathen); (passively) untrustworthy (person), or incredible (thing)
(actively) disbelieving, i.e. without Christian faith (specially, a heathen); (passively) untrustworthy (person), or incredible (thing)
KJV Translations
that believeth not, faithless, incredible thing, infidel, unbeliever(-ing)