Surreptitious
ˌsʌr.əpˈtɪʃ.əs
adjective
Done secretly or in a way intended to avoid notice, often because it would invite disapproval.
Surreptitious often modifies an action or a manner of acting. A glance can be surreptitious even when the people giving it are standing in a public room.
See how Agatha Christie and Frank Herbert use "surreptitious", with its meaning, pronunciation and real book examples.
Examples from books
I even forbore to ask her why it was necessary to abstract what she wanted in such a surreptitious manner.
Agatha Christie
The Murder of Roger Ackroyd
It was early and Alia had not yet arrived, but people already were thronging into the chamber, casting surreptitious glances at the child and adult as they passed.
Frank Herbert
Children of Dune
