The boy seemed calm as he knelt there, and terribly young and vulnerable.
None of us is terribly young, and in a few years we'll all retire as millionaires several times over.
Now, he thought, the boy looked terribly young and sick with worry or fear.
"Five is a terribly young age," the Countess said.
If he had felt old before, he now felt terribly young.
They were, you see, terribly young, most of them really boys and "not very big boys" at that.
I looked into that terribly young face, and there was no one young looking back at me.
Some of the faces being rubbed at by anxious hands were terribly young.
You do seem terribly young, but he must have had good reasons for choosing you.
The voice was male and didn't sound terribly young, but many of her students were older.