manliness /ˈmænlɪnəs/ noun3 •The quality of being manly; the set of qualities, traits and abilities considered appropriate to men (as opposed to women or children); similarity to a man.‘He he!’ simpered Brass, who, in his deep debasement, really seemed to have changed sexes with his sister, and to have made over to her any spark of manliness he might have possessed. — 1840 •(euphemistic, rare) Male genitals. •(rare) Humanity, the quality of being human. formsmanlinesses