disloyalty

noun

The quality of not being loyal to a person, country, or organization; unfaithfulness.

SYNONYMS

adulteryback-stabbingbetrayalbreach of faithbreach of trustdissidencedouble-dealingduplicityfaithlessnessfalse-heartednessfalsenessfalsityficklenesshollow-heartednessinconstancyinfidelityperfidiousnessperfidyPunic faithrecreancyseditionsubversiontreacherytreasontwo-timingunfaithfulnessunreliabilityuntrustworthiness