The laboratory's confidential research notes were stored in a locked cabinet to prevent unauthorized access.
实验室的机密研究笔记被锁在柜子里，以防未经授权的访问。
Which choice best defines “confidential”?
D — Meant to be kept secret or private. “confidential” means meant to be kept secret or private.
Which word means “meant to be kept secret or private”?
D — confidential. “confidential” means meant to be kept secret or private.
confidential — meant to be kept secret or private. In Chinese: 机密的, 保密的.
confidential is pronounced /kənˈfɪdənʃəl/.
The laboratory's confidential research notes were stored in a locked cabinet to prevent unauthorized access. (实验室的机密研究笔记被锁在柜子里，以防未经授权的访问。)
secret, private, classified — all close in meaning to confidential (meant to be kept secret or private).
public, open — each the opposite of confidential (meant to be kept secret or private).
Yes. confidential is on the SAT Prep Easy list — mid-frequency academic words that do get tested. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
con(together) + fid(believe) + ential(adjective suffix) → believing together → confidential.