How many letters does the top answer for “the properties characteristic of the male sex” have?

The most common answer is maleness (8 letters).

Crossword clue: the properties characteristic of the male sex

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

maleness 8 letters wn-def

the properties characteristic of the male sex

masculinity 11 letters wn-def

the properties characteristic of the male sex

the properties characteristic of the female sex 60% similar → femaleness, feminineness