Un-American
WordNet
adjective
(1) Considered contrary to the best interests of the United States
WiktionaryText
Adjective
- Contrary to the principles or institutions of United States.
- Not good for interest of United States.
- (US, spoken of another citizen): unpatriotic; non-xenophobic.
- Driving that fuel-efficient foreign car is downright unAmerican.
- (informal): incivil, immoral.