Translation of "unfaithful" - English-Russian dictionary

unfaithful

adjective uk /ʌnˈfeɪθfəl/ us

having sex with someone who is not your wife, husband, or usual sexual partner

неверный (о муже, жене и т. д.)
She was unfaithful to me.

(Translation of “unfaithful” from the Cambridge English–Russian Dictionary © Cambridge University Press)