unfaithfully
/"+/ (ame, mw)
unfaithfully — 副詞
1. behaving in a way that breaks a promise of loyalty to someone who trusts you, es
不忠地
對伴侶不忠的行為
behaving in a way that breaks a promise of loyalty to someone who trusts you, especially by having a secret romantic or sexual relationship with another person
Yumi found a receipt in her boyfriend's jacket and realized he had been behaving unfaithfully.
Yumi 在男友外套裡找到一張收據，發現他一直在做不忠的事。
behaving unfaithfully — discovery of infidelity context
The detective's report confirmed the businessman was living unfaithfully with a colleague from Shanghai.
偵探的報告證實，這位商人與一位上海同事有不忠的關係。
Ayesha moved to a different city after her husband acted unfaithfully with a neighbor.
Ayesha 在丈夫與鄰居做出不忠的行為後，搬到另一個城市。
Jude swore to his partner that he had never behaved unfaithfully during their months apart.
Jude 向伴侶發誓，分開的那幾個月他從未做出不忠的行為。
Ryan promised his wife he would stay loyal but was acting unfaithfully within a year.
Ryan 向妻子承諾會忠誠，但不到一年就做出不忠的行為。
- disloyally
broader — can apply to any relationship (friends, country, employer), not just romantic partners
- treacherously
stronger — implies a deliberate and harmful deception, often with serious consequences
- adulterously
narrower — only applies to married people having extramarital sex; formal or legal register
- faithfully
direct opposite — acting with loyalty and commitment toward a partner
- loyally
emphasizes steady support and devotion in any relationship
用法筆記
Typically pairs with verbs of behavior such as act, behave, or live. Almost always describes romantic or marital infidelity rather than other forms of disloyalty.