disloyally

In faithless fashion

Disloyally means in a manner that betrays allegiance or trust.

Someone who acts disloyally fails to support those to whom they owe loyalty—a friend, employer, country, or cause: She felt he had acted disloyally by sharing her secrets.

The word carries moral weight, implying a breach of expected faithfulness.

betrayal

treachery

Deliberate violation of trust

perfidy · sellout · undermine · sabotage · deception · turncoat · betrayer · untrustworthy · duplicitous · faithless

infidelity

adultery

Married person's sexual betrayal

unfaithful · extramarital · affair · cuckoldry · straying · betrayed · cheat · paramour · mistress · lover

treason

sedition

Inciting revolt against government

conspiracy · collusion · mutiny · insurrection · rebellion · spy · infiltration · coup · collaborator · quisling

fickleness

inconstant

Prone to fluctuation

changeable · fickle · mercurial · capricious · unpredictable · vacillating · flighty · inconsistent · erratic · unsteady

Opposites
faithfulness/allegiance

disloyallyloyally

With unwavering allegiance

faithfully · devotedly · steadfastly · constantly · dependably

Family

disloyal, disloyalty, disloyalties

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated G