un-american

adjective

1. not American; not characteristic of or proper to the U.S.; foreign or opposed to the characters, values, standards, goals, etc., of the U.S.

adjective

1. not in accordance with the aims, ideals, customs, etc, of the US
2. against the interests of the US

adj.1818, from un- (1) “not” + American. Everything is un-American that tends either to government by a plutocracy or government by a mob. [Theodore Roosevelt, 1917] A term used, primarily by extreme conservatives, to attack principles or practices considered to be at odds with the values of most Americans. Many object to the use of the term on the grounds that it is vague, shortsighted, and intolerant.