"Dumbness", like almost every word formed by adding the suffix "ness" to a word that would otherwise be an adjective, is a noun.
Dumbness is a noun.
Dumbness is a noun in that sentence.
Dumb is an adjective.
Not really
Dumbness was not invented, it occurs naturally.
Tropical in parts of speech
I have dumbness. LOL JKJK
inability to identify colors
parts of speech is the different types of words in a sentence.Figures of speech is how you speak
inability to identify colors
articles are actually a type of determiner (adjective) because of this it is not included in parts of speech.
luster means dumbness.