ἄπιστος
a[pistos
apistos
{ap'-is-tos}
from 1 (as a negative particle) and 4103; (actively) disbelieving, i.e. without Christian faith (specially, a heathen); (passively) untrustworthy (person), or incredible (thing):--that believeth not, faithless, incredible thing, infidel, unbeliever(-ing).
See G00001.
See G04103.