I never understood general advice against adverbs. They're a valid part of language and can be very effective if used well. "Don't repeat yourself boringly or u

I never understood general advice against adverbs. They're a valid part of language and can be very effective if used well. "Don't repeat yourself boringly or unthinkingly" seems to be the real advice here. But "angrily" conveys state of mind much more clearly than the more ambiguous "trembling, red in the face".