誠 実(せいじつ)

せいじつ

na-adjective

sincere, honest, faithful

1. sincere, honest, faithful

Describes someone who is genuine, trustworthy, and acts with integrity in their dealings with others. A highly valued personal quality in Japanese society.

彼(かれ)は誠実(せいじつ)な人(ひと)だ。

He is a sincere person.

誠実(せいじつ)に対応(たいおう)してくれて感謝(かんしゃ)しています。

I appreciate you handling this sincerely.

仕事(しごと)に誠実(せいじつ)に取(と)り組(く)む姿勢(しせい)が評価(ひょうか)された。

His attitude of approaching work with sincerity was appreciated.

Usage

誠実(せいじつ) is a な-adjective used to describe people or attitudes. It modifies nouns with な (誠実(せいじつ)な人(ひと)) and can also be used adverbially with に (誠実(せいじつ)に答(こた)える). It carries a strong positive connotation and is commonly used in both personal and professional contexts.

Common collocations

誠実(せいじつ)な人柄(ひとがら): sincere personality
誠実(せいじつ)な対応(たいおう): sincere response/handling
誠実(せいじつ)に向(む)き合(あ)う: to face sincerely
誠実(せいじつ)に働(はたら)く: to work honestly
誠実(せいじつ)さ: sincerity (noun form with さ)

Similar words

真面目(まじめ) (serious, earnest) focuses on diligence and conscientiousness, while 誠実(せいじつ) emphasizes honesty and trustworthiness in relationships. 正直(しょうじき) (honest) is about truthfulness in speech, while 誠実(せいじつ) is broader, covering one's entire conduct.

Related Words

Compare: 真面目(まじめ) (serious, earnest)

Compare: 正直(しょうじき) (honest, truthful)

Antonym: 不実(ふじつ) (faithless, insincere)

Compare: 誠意(せいい) (sincerity)

Compare: 義理堅(ぎりがた)い (loyal, dutiful, faithful to obligations)

Compare: 清廉(せいれん) (honest)

Compare: 忠義(ちゅうぎ) (loyalty)

Compare: 善良(ぜんりょう) (good-natured)

Compare: 正直(しょうじき)一途(いちず) (earnestly honest)

Compare: 篤実(とくじつ) (sincere)

Compare: 清廉潔白(せいれんけっぱく) (upright and incorruptible)

general

Added 2026.2.28 12:03 · Revised 2026.9.2 13:01

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