What does "fretful" mean?

Fretful: Disposed to fret; ill-humored; peevish; angry; in a state of vexation; as, a fretful temper. -- Fret"ful-ly, adv. -- Fret"ful-ness, n. -- Fretful, Peevish, Cross. These words all indicate an unamiable working and expression of temper. Peevish marks more especially the inward spirit: a peevish man is always ready to find fault. Fretful points rather to the outward act, and marks a complaining impatience: sickly children are apt to be fretful. Crossness is peevishness mingled with vexation or anger.