secretiveness
🇺🇸
/ˈsiːkrətɪvnəs/
🇬🇧
/ˈsiːkrətɪvnəs/
The act of keeping thoughts, feelings, or actions hidden from others.
Her secretiveness made it difficult for anyone to know what she was really thinking.
她的保密性让任何人都难以知道她真实的想法。