ethnocentric

The Greek word ethnos means "nation" or "people". So ethnocentricity shows itself in a lack of respect for other ways of life, and an ethnocentric person feels that his or her own nation or group is the cultural center of the world. Ethnocentric describes the kind of person who behaves badly when traveling in foreign countries, often called an "Ugly American" (from a book and movie of the same name). Whenever you hear someone making fun of the way a foreigner speaks English, just remember that it's the foreigner, not the person laughing at him, who actually can speak a foreign language.