faithfulness
/ˈfeɪθflnəs/ (bre, ipa) · /ˈfeɪθflnəs/ (ame, ipa) · /-fəlnə̇s/ (ame, mw)
faithfulness — noun
1. the quality of continuing to support, stay with, or be true to someone, a group,
the quality of continuing to support, stay with, or be true to someone, a group, or a belief, especially when doing so requires effort or self-denial
Elin's faithfulness to her childhood friend never wavered, even after they moved to different countries.
faithfulness to [person] — long-term commitment
Omar's faithfulness to the environmental cause inspired dozens of young volunteers in his city.
faithfulness to [cause/ideal]
The old dog's faithfulness to its owner became a well-known story throughout the village.
Kwame proved his faithfulness by keeping a difficult promise he made to his younger sister.
It was her faithfulness to the original text that made the translation so highly respected.
- loyalty
the most direct synonym; loyalty is slightly more common for groups/institutions, faithfulness for personal relationships
- devotion
suggests deep emotional attachment and care, stronger than simple loyalty
- fidelity
more formal and often used in legal or moral contexts, especially for marriage and accuracy
- constancy
emphasises the unchanging, steady nature over a long period
- disloyalty
shift of allegiance; the opposite of supporting someone or something
- unfaithfulness
directly opposite; most common in romantic relationships
- betrayal
a stronger, more active opposite involving a harmful act of disloyalty
文法句型
faithfulness to [someone/something]
用法筆記
Unlike loyalty, which is most often used for groups and institutions, faithfulness also commonly describes personal relationships (between partners or friends) and the idea of staying true to an original (as in a translation or copy). The context — personal, organisational, or factual — tells you which shade is intended.