There was no appeal against Robert's opinion, therefore his sister was compelled to yield; but she disapproved entirely of the piquant neatness of Caroline's costume, and the ladylike grace of her appearance. Something more solid and homely she would have considered "beaucoup plus convenable."

His sister was compelled to yield; but she disapproved of the piquant and ladylike neatness of Caroline's costume. Something more solid and homely she would have considered much more fitting.
