Test Your Vocabulary Knowledge with This Quiz!

Explanation:

Stealth is the correct vocabulary word for the definition provided, which means secretive or hidden. When someone or something is described as stealthy, it implies that they are able to move or act in a silent, secretive manner without being noticed. This word is commonly used in reference to actions carried out with secrecy or stealthiness.

Therefore, in the given definition, the word that corresponds to "secretive or hidden" is stealth.