不実 ふじつ
fujitsu

Noun
na-Adjective
no-Adjective

1. perfidiousness; faithlessness; inconstancy; insincerity; falsehood

かれ彼女 かのじょ不実 ふじつをたしなめた。
karewa kanojono fujitsuo tashinameta.
He chided her for her unfaithfulness.