earnestness, seriousness, sincerity
Meaning: an earnest and sincere feeling
Meaning: the quality of arousing fear or distress; "he learned the seriousness of his illness"
Seriousness or frivolousness or both.
Seriousness lurked in the depths of her eyes
Fort dropped his seriousness for an instant.
Next instant he had thrown off his seriousness, and for the remainder of the flight was his former jovial self.
"Yes; but seriousness is not unbecoming in preachers, and the music of the ballet would drown half my arguments.
The Badger strode heavily into the room, and stood looking at the two animals with an expression full of seriousness.
Then, and not until then, did she realize the seriousness of even this one phase of the problem she had undertaken to solve.
The longer the contest continued, the more did the press and the people of New Jersey awaken to the seriousness of the situation.
"From paradise, I think," said Otto, with that patient seriousness that he had caught from the monks, and that sat so quaintly upon him.
In this instance it was of more than usual import and seriousness, as Edison was virtually his own "backer," putting into the company almost the whole of all the fortune his inventions had brought him.