disloyalty

[dis-loi-uh l-tee] /dɪsˈlɔɪ əl ti/

noun, plural disloyalties.

the quality of being disloyal; lack of loyalty; unfaithfulness.

violation of allegiance or duty, as to a government.

a disloyal act.

Origin

1400-50; late Middle English < Middle French desloiaute, Old French desleaute, equivalent to desleal disloyal + -te -ty²

Synonyms

1. faithlessness, subversion. Disloyalty, perfidy, treachery, treason imply betrayal of trust. Disloyalty applies to any violation of loyalty, whether to a person, a cause, or one's country, and whether in thought or in deeds: to suspect disloyalty in a friend. Perfidy implies deliberate breaking of faith or of one's pledges and promises, on which others are relying: It is an act of perfidy to cheat innocent people. Treachery implies being secretly traitorous but seeming friendly and loyal: In treachery deceit is added to disloyalty. Treason is performing overt acts to help the enemies of one's country or government: Acting to aid a hostile power is treason.

Examples from the web for disloyalty

The same chair who you worry will get mad at you for showing disloyalty may, in fact, be off interviewing for a deanship.
It was largely your guilt toward your comrades and toward the dead that held you back, the dread of disloyalty.
This, of course, is a satire on the disloyalty of whigs.
They, too, had felt the pang of the disloyalty of comrades.
But to those interned, the formal apology and the removal of the stigma of disloyalty may count for far more than the cash.
The defectors say they are being hunted down by a regime that won't forgive disloyalty.
To choose foreignness is an act of disloyalty to one's native country.
The independent media have been shut down, and several journalists and politicians suspected of disloyalty have been jailed.
It is also something that does not exactly flatter your character: disloyalty is deceptive and dishonorable.
Herman seems disinclined to make distinctions between poor policy advice and disloyalty.

British Dictionary definitions for disloyalty

disloyalty

/dɪsˈlɔɪəltɪ/

noun (pl) -ties

the condition or an instance of being unfaithful or disloyal

Word Origin and History for disloyalty

early 15c., from Middle French desloyaulte, from Old French desloiaute, desleauté "disloyalty, faithlessness, marital infidelity," from desloial (see disloyal). Especially of allegiance to a state or sovereign since c.1600.