surreptitious

Definition

Kept secret, especially because it would not be approved of.

हिन्दी खुफिया रूप से रखा गया, विशेष रूप से इसलिए क्योंकि इसकी मंजूरी नहीं होगी।

Example

"He made a surreptitious glance at his phone during the meeting."