Unfaithful

Vine's Expository Dictionary of NT Words

1: Ἄπιστος (Strong'S #571 — Adjective — apistos — ap'-is-tos )

"unbelieving, faithless," is translated "unfaithful" in  Luke 12:46 , RV (AV, "unbelievers"). See Belief , C, Note (3), Faithless , Incredible.

King James Dictionary

UNFA'ITHFUL, a.

1. Not observant of promises, vows, allegiance or duty violating trust or confidence treacherous perfidious as an unfaithful subject an unfaithful husband or wife an unfaithful servant an unfaithful bailee or agent. 2. Not performing the proper duty.

My feet through wine unfaithful to their weight -

3. Impious infidel. 4. Negligent of duty as an unfaithful workman.

Webster's Dictionary

(1): ( a.) Not faithful; not observant of promises, vows, allegiance, or duty; violating trust or confidence; treacherous; perfidious; as, an unfaithful subject; an unfaithful agent or servant.

(2): ( a.) Not possessing faith; infidel.