Meaning of un-American

un-A•mer•i•can

Pronunciation: (un"u-mer'i-kun), [key]
— adj.
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.