忠実 ちゅうじつ
chūjitsu

Noun
na-Adjective

1. faithful; devoted; loyal; honest; true

あの翻訳 ほんやく原文 げんぶん忠実 ちゅうじつだそうだ。
ano hon'yakuwa gembunni chūjitsuda sōda.
That translation is said to be true to the original.