Pronunciation: /ʌnˈfeɪθfəlnɪs/
noun the state or quality of being unfaithful; disloyalty or lack of faithfulness
A1 Unfaithfulness is when someone is not loyal in a relationship.
A2 The couple's unfaithfulness led to the end of their marriage.
B1 She couldn't forgive her husband's unfaithfulness and decided to leave him.
B2 The scandal revealed the CEO's unfaithfulness to the company's values.
C1 The novel explores the themes of love, betrayal, and unfaithfulness.
C2 The political leader's unfaithfulness to his promises cost him the support of his followers.
formal The unfaithfulness of the employee was discovered through careful monitoring of their activities.
informal She couldn't believe the unfaithfulness of her best friend, who had been lying to her for months.
slang I can't believe the unfaithfulness of that guy, he's been two-timing his girlfriend for weeks.
figurative The unfaithfulness of the weather forecast left us unprepared for the sudden storm.
was unfaithful
unfaithfulnesses
more unfaithful
most unfaithful
is unfaithful
will be unfaithful
has been unfaithful
is being unfaithful
unfaithfulness
faithful
to be unfaithful
being unfaithful
unfaithful