discreet

"I need my privacy, so please stay out of my room."

"The club maintained secrecy about its upcoming surprise party for the teacher. "

"She felt a wave of embarrassment when she realized she had called her teacher "Mom" in front of the whole class. "

"It is of great importance that you act in a respectful manner towards the duke and duchess."

"Please direct your attention to the following words."

"The upcoming school holiday is a welcome break for the students. "

"It was a surprise to find out I owed twice as much as I thought I did."

"The new student sat in the back of the classroom, intentionally inconspicuous. "

"The teacher's caution about the upcoming exam helped the students prepare better. "

"The teacher threw a challenge to the students: "Who can solve this difficult math problem?" "

"She is exercising regularly to improve her health. "

"The professor of ancient history specialized in diplomatic studies. "