indifference vs unemotionality

indifference and unemotionality both are nouns.

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

As nouns, indifference and unemotionality are synonyms defined as:

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

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

indifference (noun)	unemotionality (noun)
the trait of lacking enthusiasm for or interest in things generally	absence of emotion
the trait of remaining calm and seeming not to care; a casual lack of concern	apathy demonstrated by an absence of emotional reactions
unbiased impartial unconcern
apathy demonstrated by an absence of emotional reactions