covert

adjective
UK /ˈkʌvət/
US /ˈkoʊvɜːrt/

Hidden or secret so people do not notice it.

The spies held a covert meeting in the dark park.


OTHER MEANINGS

2. A thick group of bushes or small trees where animals can hide.

The rabbit dashed into the covert to escape the fox.

3. A hiding place or shelter.

The birds found a safe covert among the branches.

4. Done in a quiet, sneaky way to avoid being seen.

She gave her friend a covert wink during class.