The confusion has deepened because of similar roots.

The confusion only deepened after the exodus from Vulcan.

The confusion only deepened, for many, the feelings of dread.

The confusion on Jem's face only deepened.

Rebecca was heartened by that reaction, but her confusion deepened.

His confusion deepened, Timoshenko nodded, tried to smile, but instead looked as if he had just been jabbed with a long needle.

The security chief's confusion only deepened.

The confusion deepened with inquiries here.

"I bin lookin' at you," the man said and Harry's confusion deepened.

The confusion on his face deepened.