effeminateness vs sissiness

effeminateness and sissiness both are nouns.

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

As nouns, effeminateness and sissiness are synonyms defined as:

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

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

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