Sentence:  She was like a Beardsley "Salome", he had said. And indeed she had the narrow eyes and the high cheekbone of that creature, and as nearly the sinuosity as is compatible with human symmetry. His wooing had been brief but <WSD>incisive</WSD>. 
Meaning of the word marked with <WSD> tags:  Quickly proceeding to judgment and forceful in expression; decisive; forthright.