perfidiously

IPA/pəˈfɪd.i.əs.li/
IPA/pɚˈfɪd.i.əs.li/

perfidiously — 副詞

1. describing an action or manner that deliberately breaks faith with someone, show

1.副詞C2
釋義

背信地

以背叛信任的方式行事

describing an action or manner that deliberately breaks faith with someone, showing untrustworthiness and a complete lack of loyalty.

例句

Quan perfidiously revealed the location of the secret meeting to their rivals.

Quan 背信地將秘密會議的地點透露給了對手。

perfidiously + verb (revealed) — disclosure of secrets

The general perfidiously tore up the peace treaty only days after signing it.

那名將軍背信地撕毀了和平條約，簽署後才過沒幾天。

perfidiously + verb (tore up) — breaking an agreement

同義詞
  • treacherously

    more common; emphasises active deception and danger to the betrayed party

  • disloyally

    less formal; focuses on failing to support someone rather than actively harming them

  • faithlessly

    rare and literary; describes breaking a promise or commitment

  • deceitfully

    broader meaning; includes lying and trickery, not only betrayal of loyalty

反義詞
  • loyally

    direct opposite; acting with consistent support and faithfulness

  • faithfully

    emphasises keeping promises and honouring commitments

文法句型

verb + perfidiously

perfidiously + verb

用法筆記

Typically modifies verbs of communication or agreement (acted, spoke, revealed, betrayed, abandoned). Frequently appears in formal writing, literary texts, or historical accounts of political betrayal. Not used in everyday casual conversation.

常見錯誤

❌He perfidiously broke the window during the argument.
✅He perfidiously betrayed his partner's trust by revealing their secret.
💡perfidiously describes betrayal of confidence or loyalty, not accidental or even intentional damage to objects.
❌She perfidiously forgot to bring the cake.
✅She perfidiously abandoned her allies when they needed her most.
💡forgetting is an accident; perfidiously implies deliberate faithlessness.