egregious

\i-ˈgrē-jəs\ adjective
Etymology:
Latin egregius, from e- + greg-, grex herd — more at gregarious
Date:
1archaic : distinguished2: conspicuous; especially : conspicuously bad : flagrant — egre·gious·ly adverb
— egre·gious·ness noun

I love this word because it means "away from the flock"--an egregious action is one that puts you over to one side of the herd. It's the same root as "gregarious", but quite a different meaning.