effeminacy vs unmanliness

effeminacy and unmanliness both are nouns.

Word	Noun	Adjective	Verb	Adverb
effeminacy	Yes	No	No	No
unmanliness	Yes	No	No	No

As nouns, effeminacy and unmanliness are synonyms defined as:

effeminacy and unmanliness: the trait of being effeminate (derogatory of a man)

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

effeminacy (noun)	unmanliness (noun)
the trait of being effeminate (derogatory of a man)	the trait of being effeminate (derogatory of a man)