spiritlessness vs indifference

spiritlessness and indifference both are nouns.

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

As nouns, spiritlessness and indifference are synonyms defined as:

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

Other synonyms of spiritlessness include apathy, numbness.

spiritlessness (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
	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