The old fellow's reply was much shorter, and Lovett had heard that phrase before, a famed example of polite disbelief.

Dona Vorchenza placed a hand against her breast in an expression of polite disbelief.

His eyebrow lifted again, an expression of polite disbelief.

Blanche tightened her lips in polite disbelief.

Or it might have been polite disbelief.

Niall looked at him with polite disbelief.

Troi's arms were crossed and her brows were raised in polite disbelief.

There was polite disbelief in the Inspector's tone.

He saw the polite, well-concealed disbelief in their faces and accepted it.

The face of the younger officer across the table expressed polite disbelief.