Virility refers to any of a wide range of masculine characteristics viewed positively. It isn't applicable to women or to negative characteristics. The Oxford English Dictionary (OED1) says virile is "marked by strength or force." Virility is commonly associated with vigour, health, sturdiness, and constitution, especially in the fathering of children. In this last sense, virility is to men as fertility is to women. OED1 also notes that virile has become obsolete in referring to a "nubile" youn… (More on Virility)