imperturbable

The next moment she was on the floor on her back, wailing, but Tammas smoked on imperturbably.

Unless she happened to be in a particularly bad humour—and this was not often the case—Florrie was imperturbably amiable.

"On an average, she made a new will at least once a year," said Mr. Wells imperturbably.

"It's a clear case of desertion," declared Cynthia imperturbably, two months later.