She was conscious of his aim, and in her better moods endured his efforts placidly, only showing their uselessness by now and then suppressing a wearied sigh, and checking him at last with the saddest of smiles and kisses.
There are no more uses of "placid" in the book.
Show samples from other sources
a ribbon of sand between the angry sea and the placid bay
I scan their faces, trying to look as placid as possible.