Correct

秘而不宣

/ mì ér bù xuān / 
Strokes

Definition

to withhold information/to keep sth secret

Example

Definition

keep sth secret; not let anyone in on a secret; hush sth up

1
Duì
对
zìjǐ
自己
de
的
yìtú
意图
mìérbùxuān
秘而不宣

keep one's intentions to oneself