spiritlessness vs numbness

spiritlessness and numbness both are nouns.

Word	Noun	Adjective	Verb	Adverb
spiritlessness	Yes	No	No	No
numbness	Yes	No	No	No

As nouns, spiritlessness and numbness are synonyms defined as:

spiritlessness and numbness: the trait of lacking enthusiasm for or interest in things generally

Other synonyms of spiritlessness include apathy, indifference.

spiritlessness (noun)	numbness (noun)
the trait of lacking enthusiasm for or interest in things generally	the trait of lacking enthusiasm for or interest in things generally
	partial or total lack of sensation in a part of the body; a symptom of nerve damage or dysfunction