Another word for faithless
faithless unfaithful false disloyal traitorous treacherous perfidiousSearch Thesaurus
These adjectives mean not true to duty or obligation. Faithless and unfaithful imply failure to adhere to promises, obligations, or allegiances: was faithless to her ideals; an unfaithful spouse. False emphasizes deceitfulness: “To thine own self be true,/And it must follow, as the night the day,/Thou canst not then be false to any man” (Shakespeare). One who is disloyal betrays an allegiance: disloyal staff members who exposed the senator's indiscretions. Traitorous most commonly refers to disloyalty to a government or nation: a traitorous double agent. Treacherous suggests a propensity for betraying trust or faith: “She gave the treacherous impulse time to subside” (Henry James). Perfidious suggests vileness of behavior and often deceitfulness: a perfidious assassin.
Another word for faithlessadjective
Not true to duty or obligation:disloyal, false, false-hearted, perfidious, recreant, traitorous, treacherous, unfaithful, untrue. See continue, trust