infidelity
Definitions
The action or state of being unfaithful to a spouse or other sexual partner.
Lack of religious belief or faith.
The quality or state of being unfaithful or disloyal.
Examples
The couple's marriage eventually collapsed due to years of infidelity.
He was deeply hurt when he discovered his partner's infidelity.
The novel explores the devastating consequences of infidelity on a family.
Synonyms
adultery unfaithfulness disloyalty betrayal cheating treachery perfidy
Antonyms
fidelity loyalty faithfulness allegiance devotion constancy steadfastness