unfaithfulness
🇺🇸
/ʌnˈfeɪθflnəs/
🇬🇧
/ʌnˈfeɪθflnəs/
noun
R
Being dishonest in a romantic relationship by having a sexual relationship with someone other than your partner.
The discovery of his unfaithfulness broke her heart.
发现他的背叛让她心碎。
translation
不忠
词形变化
Plural
unfaithfulnesses