Sentence:  [S]he put the bow [of the double bass] away and went back to playing pizzicato, plucking the strings with chill serenity, ritual aplomb. She stood with her back straight, addressing the strings with a <WSD>churchical</WSD> assurance, <WSD>churchical</WSD> rectitude, as patient a fingerwalk as there ever was. 
Meaning of the word marked with <WSD> tags:  Pertaining to or characteristic of church; ecclesiastical.