emotionlessness vs phlegm

emotionlessness and phlegm both are nouns.

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

As nouns, emotionlessness and phlegm are synonyms defined as:

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

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

emotionlessness (noun)	phlegm (noun)
absence of emotion	inactivity; showing an unusual lack of energy
apathy demonstrated by an absence of emotional reactions	expectorated matter; saliva mixed with discharges from the respiratory passages; in ancient and medieval physiology it was believed to cause sluggishness
	apathy demonstrated by an absence of emotional reactions