numbness vs indifference

numbness and indifference both are nouns.

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

As nouns, numbness and indifference are synonyms defined as:

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

Other synonyms of numbness include apathy, spiritlessness.

numbness (noun)	indifference (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	the trait of remaining calm and seeming not to care; a casual lack of concern
	unbiased impartial unconcern
	apathy demonstrated by an absence of emotional reactions