disloyal
Breaking one's allegiance
Disloyal describes someone who fails to maintain allegiance or commitment where it's expected—to a person, group, cause, or country.
A disloyal friend betrays confidences.
A disloyal employee undermines the company.
The word implies a relationship that should command faithfulness: She felt disloyal for even considering the competitor's offer.
One who betrays allegiance
- backstabberDisloyal pretend ally
- turncoatOne who betrays allegiance
- double-crosserOne who deceives confederates
- betrayerOne who breaks allegiance
defector · Judas · quisling · snake · rat · fink · informant · spy
Deceptive rule-breaking
- adulteryMarried person's sexual betrayal
- infidelityDisloyalty to a partner
- two-timingBeing unfaithful romantically
- philanderingCasual extramarital affairs
affair · extramarital · cuckoldry · straying · faithless · untrue · inconstant · fickle
traitor
One who betrays allegiance
- backstabberDisloyal pretend ally
- turncoatOne who betrays allegiance
- double-crosserOne who deceives confederates
betrayer · defector · Judas · quisling · snake · rat · fink · informant · spy · saboteur
cheating
Deceptive rule-breaking
- adulteryMarried person's sexual betrayal
- infidelityDisloyalty to a partner
- two-timingBeing unfaithful romantically
philandering · affair · extramarital · cuckoldry · straying · faithless · untrue · inconstant · fickle · falsehearted
- betrayerstraitor, betrayer, backstabber, turncoat, double-crosser
- betrayalbackstab, betray, betrayal, traitor, backstabber
- commitment levelscommitted, dedicated, devoted, faithful, steadfast
- moral judgmentsgood, evil, wicked, virtuous, moral
- deceiversliar, liars, deceiver, fraud, fake
- flawsfaults, defect, flaw, blemish, flaws
disloyaltrustworthy
Worthy of confidence
trusty · dependable · reliable · responsible · solid