"They see us," said Aramis, and sank again into impassibility.
Mrime acknowledges that much of his own and Stendhal's impassibility was pure posing.
Mona's impassibility was gone, and her questions, like her breath, came hot and fast.
Ursus had the intrepidity of a fly and the impassibility of a sensitive plant.
His impassibility was only feigned, and this is the curious ...