Sentence:  She bore the proportions of a marchioness all over; that is, was more <WSD>wieldy</WSD> than a duchess, more unwieldy than a countess. ... [T]he Marchioness of Clanweary was <WSD>wieldy</WSD> and limp; she moved herself surprisingly, and if not for too long together, was a good walker; but her feet were too small for her in the long run. 
Meaning of the word marked with <WSD> tags:  Able to wield one's body well; active, dexterous.