She did not know all the momentousness of the relation between Deronda and her brother, but she had seen, and instinctively felt enough to forebode its being incongruous with any close tie to Mrs. Grandcourt; at least this was the clothing that Mirah first gave to her mortal repugnance. 
She felt instinctively that the relation between Deronda and her brother was incongruous with any close tie to Mrs. Grandcourt. 