Synonyms:
- 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,
- unfaithful,
- unobservant,
- unsteadfast,
- untrue