sedateness

The sedateness of his deportment and the apparent regularity of his life delighted austere moralists.

I had behaved with unusual sedateness, had showed an aplomb I had never before evidenced.

Women have very often, and the best of women most often, a provoking sedateness of mind.

She turned her eyes to his, smiling with a certain diffident, sweet sedateness.

But if you do attend, observe gravity and sedateness, and also avoid making yourself disagreeable.