fair sex, the

Females in general. This cliché, which is rapidly dying out, is a direct translation of the French le beau sexe, a phrase popularized by the English journalists Joseph Addison and Richard Steele (“That sex which is therefore called fair,” The Spectator, 1712). It was already a cliché by the time Arthur Conan Doyle (The Second Stain, 1905) put it in Sherlock
Holmes’s mouth: “Now Watson, the fair sex is your department.”