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.
The King James Bible has stood its ground for nearly 400 years. However, during that time the English language has changed, and with it the meanings of some words it used. Here are more than 6,500 words whose definitions have changed since 1611.Wikipedia
Read More