unfaithful
US /ʌnˈfeɪθ.fəl/
UK /ʌnˈfeɪθ.fəl/
形容詞
1.
不誠実な
having a sexual relationship or experience with a person who is not your husband, wife, or usual sexual partner:
例:
•
If a man was unfaithful to me I'd leave him no matter what the circumstances.
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