Untenable is defined as something that cannot be maintained or defended. If you have a weak argument that falls apart as soon as anyone expresses any skepticism, this is an example of when you have anuntenable argument. that cannot be held, defended, or maintained.
Eighteenth Amendment to the United States Constitution. The Eighteenth Amendment (Amendment XVIII) of the United States Constitution effectively established the prohibition of alcoholic beverages in the United States by declaring the production, transport, and sale of alcohol (though not the consumption or private possession) illegal.
Prohibition was a period of nearly fourteen years of U.S. history in which the manufacture, sale, and transportation of liquor was made illegal. It led to the first and only time an Amendment to the U.S. Constitution was repealed.Dates: 1920 -- 1933. Also Known As: Noble Experiment.hile it was the 18th Amendment that established Prohibition, it was the Volstead Act (passed on October 28, 1919) that clarified the law. The Volstead Act stated that beer, wine, or other intoxicating malt or vinous liquors meant any beverage that was more than 0.5% alcohol by volume.