imperturbably

"No sabby lead chop till ploddem withee dipper," explained the Chinaman, imperturbably.

"All the more reason why mine should be more interesting, then," retorted Tilly, imperturbably.

"That man has a vocation," announced my little neighbor, who had stared imperturbably at the surgeon while he was speaking.

They refused to recognize in it any divine element of destiny, while they remained imperturbably unastonished at its course.

He smoothed his face to the expression proper to a person unsurprised, dealing imperturbably with what he had long ago foreseen.