waif-like
From Longman Dictionary of Contemporary Englishwaif-likeˈwaif-like adjective extremely pale and thin images of waif-like models in girls’ magazinesExamples from the Corpuswaif-like• Garry had a long thin body, giving him a waif-like appearance.• How extraordinary that a waif-like singer in her 20s - however you judge her talents - can stir up so much feeling.