What does 誠実 mean?
誠実 is a Japanese noun meaning “sincere, honest, faithful” in English. It is written as 誠実 in kanji, せいじつ in hiragana, and seijitsu in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
ナンシーには誠実さが欠けているようだ。
Nancy seems to lack sincerity.