Sentence:  "He's a trifle <WSD>gauche</WSD>" said Lady Hammergallow, jumping upon the Vicar's attention. "He neither bows nor smiles. He must cultivate oddities like that. Every successful executant is more or less <WSD>gauche</WSD>." 
Meaning of the word marked with <WSD> tags:  Awkward or lacking in social graces; bumbling.