stealthy
adjectiveUK /ˈstel.θi/
US /ˈstel.θi/
Moving in a quiet, careful way so nobody sees or hears you.
The cat made a stealthy move toward the bird.
OTHER MEANINGS
2. Done in a secret way to avoid being noticed.
The spy took a stealthy glance at the documents.
3. Moving slowly and carefully to surprise someone or something.
The ninja was stealthy as he crossed the room.
4. Describing an action that is hard to detect.
The plane made a stealthy approach under the radar.