What is a quality noun?

Nouns for qualities are called abstract nouns.

An abstract noun is a Word for something that can't be experienced by any of the five physical senses; something that can't be seen, heard, smelled, tasted, or touched. Abstract nouns are Words for things that are learned, known, understood, believed, or felt emotionally. Some examples of qualities are:

• beauty
• charm
• dependability
• impatience
• patience
• strength
• stubborness
• trouble