Sexism

Sexism was the idea that all members of a sex were superior or inferior to another sex. An individual with this belief was known as a sexist.

By humans
While visiting Regency London in 1814, Bill Potts was subjected to sexist (as well as racist) remarks from Lord Sutcliffe, who referred to her as a "creature" and demanded her to "show respect in the presence of [her] betters". The Twelfth Doctor responded by punching him in the face, knocking him down. (TV: Thin Ice)

Roz Forrester found it difficult to understand the racism and sexism she experienced in 1919 Paris since such attitudes did not exist between humans in the 30th century from where she came. (PROSE: Toy Soldiers)