Definitions

1. noun

The quality of being able to move stealthily or quietly

“Her slinkiness allowed her to sneak up on her prey undetected.”

2. noun

A subtle or sneaking movement or action

“The slinkiness of the snake as it slid through the grass was mesmerizing.”

3. noun

A quality of being sly or cunning

“Her slinkiness was an asset in her line of work as a spy.”