Webster 1913 Edition
Not faithful; not observant of promises, vows, allegiance, or duty; violating trust or confidence; treacherous; perfidious;
unfaithfulagent or servant.
My feet, through wine,
unfaithfulto their weight.
His honor rooted in dishonor stood,
unfaithfulkept him falsely true.
Not possessing faith; infidel.
Webster 1828 Edition
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 -
4.Negligent of duty; as an unfaithful workman.