信義誠実の原則 しんぎせいじつのげんそく Meanings Noun principle of good faith Kanji 信 trust. Read as シン. 義 justice 誠 sincere. Read as セイ. 実 real. Read as ジツ. 原 original. Read as ゲン. 則 rule. Read as ソク. Word lists Law Jinuma: Japanese Dictionary · Word lists