Understanding Vocabulary in Context: Stealthy

In the story "The Curious Little Mouse," a tiny mouse named Timmy lived in a cozy hole behind the kitchen cabinets. Timmy was known for his inquisitive nature; he loved to explore new places and search for little treasures. One day, while rummaging through a pile of old papers, he stumbled upon a shiny object that caught his eye. Excited, he squeaked loudly, but before he could grab it, a shadow loomed over him. It was a cat, known for being stealthy and cunning. Timmy's heart raced as he realized he needed to escape quickly.

The word 'stealthy' in this context most likely means: