And he was aware of this impassiveness concealing a lucid astonishment.
He had got inside my impassiveness now, and I was like a madman at the thoughts he had raised.
Crumley's reply showed the impassiveness of the well-trained servant.
The keen, strong features into which Lowell gazed were mask-like in their impassiveness.
From his quiet face had fallen every trace of impassiveness.