UNMANLINESS

effeminacy, effeminateness, sissiness, softness, womanishness, unmanliness

(noun) the trait of being effeminate (derogatory of a man); “the students associated science with masculinity and arts with effeminacy”; “Spartans accused Athenians of effeminateness”; “he was shocked by the softness of the atmosphere surrounding the young prince, arising from the superfluity of the femininity that guided him”

Source: WordNet® 3.1

Etymology

Noun

unmanliness (countable and uncountable, plural unmanlinesses)

The property of being unmanly; sissiness.

Antonyms

• manliness

Source: Wiktionary