sissiness vs effeminateness

sissiness and effeminateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
sissiness	Yes	No	No	No
effeminateness	Yes	No	No	No

As nouns, sissiness and effeminateness are synonyms defined as:

sissiness and effeminateness: the trait of being effeminate (derogatory of a man)

Other synonyms of sissiness include effeminacy, softness, unmanliness, womanishness.

sissiness (noun)	effeminateness (noun)
the trait of being effeminate (derogatory of a man)	the trait of being effeminate (derogatory of a man)