Modifies a noun

• baby: Elizabeth Gurley Flynn describes how, as a young and inexperienced mother, she did not know what to do with her fretful baby.

• impatience: This shewed a kind of fretful impatience; nor was it to be wondered at, considering our disagreeable ride.

• week: In my case, it took about a week; a long, unpleasant, fretful week.

• night: Shaiala awoke, rubbing her eyes to clear the nightmares that had haunted her fretful night.

• child: Then beside myself, there were Johnny, a rather fretful child, and baby Nellie.

Used with adjective complement

• become: Moreover, there was little for them to eat, and as the officers became hungry they became fretful.