Douglas Harper's Etymology Dictionary
waifish
1870, from waif + -ish. Related: Waifishly; waifishness.
Wiktionary
waifish
a. waiflike.
Usage examples of "waifish".
Her waifish eyes, heavily made up and almost comically long-lashed, were as blue as Spica, Alacrity thought, while Floyt compared them to cornflowers.
Unlike the waifish, cookie-cutter blondes that adorned Harvard dorm room walls, this woman was healthy with an unembellished beauty and genuineness that radiated a striking personal confidence.
She looked waifish and lost in the big loose robe, cinched tight at the waist, a Ganymede with the soft tumbled pageboy hair.