Unfaithful

Adjective

 * 1) not having religious faith
 * 2) not keeping good faith; disloyal; not faithful
 * 3) not honest or upright
 * 4) of a translation: incorrect
 * 5) adulterous

Derived terms

 * unfaithfully
 * unfaithfulness

Adverbs for Unfaithful
notoriously; allegedly; conspicuously; flagrantly; openly; terribly; carelessly; cruelly; irresponsibly; treacherously; curiously; secretly; furtively; actually; presumably; recklessly; undependably; intolerably; abominably; wickedly; viciously; reprehensibly; provokingly; vexatiously; unbearably; unprofitably; deplorably; uselessly; surreptitiously; heinously; wretchedly; miserably; definitely; despicably; detestably; dreadfully; worthlessly; incorrigibly.

Thesaurus
derelict, disaffected, disloyal, disregardful, faithless, false, fickle, inattentive, inconstant, inobservant, negligent, nonadherent, noncompliant, nonconforming, nonobservant, not true to, of bad faith, perfidious, recreant, traitorous, treacherous, trothless, uncompliant, unconforming, unloyal, unobservant, unsteadfast, untrue