What does awfully quiet mean?

Awfully quiet means “very quiet.” It is typically used to describe a person who is being unusually silent (e.g., “You’ve been awfully quiet all day; is everything OK?”).

On a related note, if you’re not certain whether the word you’re looking for is quite or quiet, “quite” usually means “very” or “completely.”

Have you tried QuillBot’s free Paraphraser? You can use it to help you find other ways of expressing “awfully quiet” in your writing, such as “not said a word.