faithless
Lacking firm commitment
Faithless means lacking faith or loyalty.
A faithless spouse betrays marriage vows; a faithless ally abandons commitments.
The word implies a breach of trust or duty owed: The faithless treasurer had been embezzling for years.
In religious contexts, faithless describes someone without belief in God, though this use is less common now.
Deliberate violation of trust
- perfidyDeliberate breach of trust
- treasonBetraying one's nation
- backstabberDisloyal pretend ally
- double-crossTreacherous deception of partner
turncoat · defection · sellout · renegade · apostate · defector · traitor · double-dealing
Erratically disloyal in affection
- capriciousSubject to sudden changes
- inconstantProne to fluctuation
- changeableCapable of alteration
- mercurialProne to sudden change
erratic · volatile · unpredictable · flighty · wavering · vacillating · untrustworthy · undependable
Deceptive rule-breaking
- adulteryMarried person's sexual betrayal
- affairRomantic entanglement outside commitment
- two-timingBeing unfaithful romantically
- philandererHabitual romantic cheater
extramarital · cuckold · mistress · paramour · liaison · tryst · heartbreaker · homewrecker
One denying gods exist
- agnosticFlexible across platforms
- skepticOne who doubts claims
- nonbelieverOne lacking religious faith
- secularNonreligious, worldly
unbelieving · godless · heretic · freethinker · heathen · pagan · apostate · irreligious
Inclined to question claims
- doubtfulUncertain of truth
- suspiciousInclined to distrust
- cynicalDoubting human goodness
- mistrustfulLacking faith in others
incredulous · wary · leery · disbelieving · questioning · uncertain · hesitant · guarded
treachery
Deliberate violation of trust
- perfidyDeliberate breach of trust
- treasonBetraying one's nation
- backstabberDisloyal pretend ally
double-cross · turncoat · defection · sellout · renegade · apostate · defector · traitor · double-dealing · sedition
fickle
Erratically disloyal in affection
- capriciousSubject to sudden changes
- inconstantProne to fluctuation
- changeableCapable of alteration
mercurial · erratic · volatile · unpredictable · flighty · wavering · vacillating · untrustworthy · undependable · unsteady
cheating
Deceptive rule-breaking
- adulteryMarried person's sexual betrayal
- affairRomantic entanglement outside commitment
- two-timingBeing unfaithful romantically
philanderer · extramarital · cuckold · mistress · paramour · liaison · tryst · heartbreaker · homewrecker · promiscuous
atheist
One denying gods exist
- agnosticFlexible across platforms
- skepticOne who doubts claims
- nonbelieverOne lacking religious faith
secular · unbelieving · godless · heretic · freethinker · heathen · pagan · apostate · irreligious · doubting
skeptical
Inclined to question claims
- doubtfulUncertain of truth
- suspiciousInclined to distrust
- cynicalDoubting human goodness
mistrustful · incredulous · wary · leery · disbelieving · questioning · uncertain · hesitant · guarded · dubious
- nonbelieversatheist, atheists, agnostic, agnostics, nonbeliever
- Unbeliefatheism, agnosticism, irreligion, nonbelief, disbelief
- betrayerstraitor, betrayer, backstabber, turncoat, double-crosser
- outcastsoutcast, pariah, pariahs, outcasts, outlaws
- infernalhellish, demonic, diabolical, satanic, devilish
- secularsecular, worldly, temporal, mundane, profane
faithlesstrustworthy
Worthy of confidence
reliable · trusty · dependable · trustable · true
- faithless electorsDelegates voting against pledges