Sentence:  Because of the authentic homogeneity of his early Nationalistic materials , and his flair for orchestrations - his brilliant Petruchka , his savage Sacre du Printemps , his <WSD>incisive</WSD> Les Noces - the world kept hoping that he could recapture the historical direction for which his native talents were predisposed . 
Meaning of the word marked with <WSD> tags:  suitable for cutting or piercing