noun
Formal legal term for a contract that prohibits disclosure of confidential information.
プロジェクト開始前に非開示合意を結んだ。
We signed a non-disclosure agreement before starting the project.
秘密保持契約 is a more common synonym for non-disclosure agreement, while 非開示合意 is a less frequent but equivalent legal term.
Compound of 非 (non-), 開示 (disclosure), and 合意 (agreement).