Recently I've noticed the hyphenation of adverbs and adjectives, such as "well-rounded." Is this correct, or should it be simply "well rounded?"

Also, which is correct: "fastest-moving car" or "fastest moving car?"

What is the determining factor when it comes to hyphenating such words? Please help...QUICKLY!

Hi,

This is covered in the lesson on hyphens with compound adjectives. There is section on adverbs too.

Bottom line with adverbs? Use a hyphen to eliminate ambiguity.