Why is laziness a noun?

"Laziness" is a noun because it refers to a quality, state, or condition, rather than an action or verb. Here's why:

* It describes an attribute: Laziness is a characteristic or trait of a person. It describes how someone behaves or thinks.

* It can be the subject or object of a sentence: You can say "Laziness is a vice" or "I blame my laziness." Here, laziness is the thing being discussed or acted upon.

* It doesn't describe an action: You can't "lazinize" something, it's not an action you perform.

In contrast, "lazy" is an adjective, as it describes a noun (e.g., "He is a lazy person").