I saw he was perfectly serious, and only anxious to spare my feelings if such a thing should happen to be true.

What they have produced is a perfectly serious document that makes a coherent case.

I glanced at him uneasily, but he seemed perfectly serious.

Anyone could see from the old man's face that he was perfectly serious.

She started to laugh, then saw that he was perfectly serious.

It took Hunter a moment to realize she was perfectly serious.

"And now something else has come," Meredith said, perfectly serious for once.

She looked over her shoulder to see that he was perfectly serious.

I was perfectly serious in what I said at dinner.

I stared at him for a moment, but he seemed perfectly serious.