Unfaithful; disloyal; false.

Faithless.

Unfaithful to another. Obsolete.

Of conduct: Characterized by want of good faith; not honest or upright.

Unfaithful.

Unfaithful, untrue to a trust. (Cf. confident, adj. 6.)

Unfaithful to duty or a person; false, apostate, treacherous. In predicative use. Usually with to (also †from) (one's duty, lord, moral duty, etc.).

Unfaithful; faithless.

= unfaithful, adj.