It depends on what type of chauvinism you are talking about;

male chauvinism= female chauvinism (and vice-versa)

human chauvinism (anthropocentrism)= environment chauvinism (ecocentrism)

etc...etc...

His chauvinism was evident in the way he always believed his nation was superior to others.

Chauvinism is, essentially, a prejudice loyalty to a specific gender or group. An example sentence would be: His chauvinism was absolutely disgusting.

He displayed his chauvinism by belittling women in the workplace.

The antonym for male chauvinism is female chauvinism. Both refer to a prejudiced belief that one's sex is superior to the opposite sex.