5 adjectives to describe impassiveness

What a poor conception of supernal bliss, without love or action or thought or holy companionship,only rest, unthinking repose, and absence from disease, misery, and death, a state of endless impassiveness!

The speech was admirably delivered, and its virtue was its extreme impassiveness; it seemed quite impersonal, the mere automatic action of justice, not revengeful, not seeking for death, but merely stating the case as it might be stated by some planet or remote fixed star.

It was the forced impassiveness of a strong man whose heart is breaking.

For a minute or so longer he sat there, his face wearing its habitual impassiveness.

Such was the immovable impassiveness of this ascetic, that the ants had thrown up their mound as high as his waist without being disturbed, and birds had built their nests in his hair.

5 adjectives to describe  impassiveness