miserableness vs miserable

miserableness is a noun but miserable is not a noun.

Word	Noun	Adjective	Verb	Adverb
miserableness	Yes	No	No	No
miserable	No	Yes	No	No

miserableness (noun)	miserable (noun)
a state of ill-being due to affliction or misfortune

miserableness (adjective)	miserable (adjective)
	of the most contemptible kind
	of very poor quality or condition
	contemptibly small in amount
	characterized by physical misery
	deserving or inciting pity
	very unhappy; full of misery