emotionlessness vs indifference

emotionlessness and indifference both are nouns.

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

As nouns, emotionlessness and indifference are synonyms defined as:

emotionlessness and indifference: apathy demonstrated by an absence of emotional reactions

Other synonyms of emotionlessness include impassiveness, impassivity, phlegm, stolidity, unemotionality.

emotionlessness (noun)	indifference (noun)
absence of emotion	the trait of lacking enthusiasm for or interest in things generally
apathy demonstrated by an absence of emotional reactions	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