Usage patterns 〈 事こと 〉 に 忠ちゅう 実じつ だ to be faithful/true to something (an original, a principle, etc.)
This movie is faithful to the original novel.
忠ちゅう 実じつ に 〈 動どう 詞し 〉 to do something faithfully/loyally
He followed his boss's instructions faithfully.
忠ちゅう 実じつ な 〈 人ひと 〉 a faithful/loyal person (subordinate, servant, etc.)
A loyal subordinate earns his boss's trust.
Kanji 忠 loyalty, fidelity, faithfulness Related words 誠実 emphasizes sincerity and honesty of character, while 忠実 focuses on faithfulness or loyalty to a person, duty, or original.
忠誠 is a noun meaning loyalty or allegiance (often paired with 誓う ), while 忠実 is the adjective describing a faithful person or reproduction.
従順 stresses obedience and submissiveness in a hierarchical relationship, whereas 忠実 stresses faithful devotion without implying servility.
忠実 describes faithful, diligent behavior in everyday duties or reproduction, whereas 忠義 specifically denotes deep loyalty to a lord or cause.
忠実 is the modern word for being faithful or loyal, while まめ used in this sense is old-fashioned and rarely heard today.
Etymology Composed of 忠 (loyalty, fidelity) and 実 (truth, reality). The combination conveys the idea of being true and loyal in a concrete, reliable manner.
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