sneaky
adjectiveUK /ˈsniː.ki/
US /ˈsniː.ki/
Doing something in a secret or tricky way so others don't notice.
The sneaky cat crept up on the bird without making a sound.
RELATED WORDS
OTHER MEANINGS
2. Done quietly and secretly to avoid being seen or heard.
He took a sneaky peek at his birthday presents.
3. Clever in a way that is slightly dishonest.
That was a sneaky trick to win the game.
4. Hard to notice or detect.
She added a sneaky bit of sugar to the sauce.