Gunn turned away from the door that, he had said, led out to the main plant, with just the proper modicum of polite regret.

The baron bowed his head, his fair hair gleaming in the candlelight, his smooth features showing a polite regret.

All she could come up with was polite regret.

Lacking that introduction, she had no choice but to tone her words to meet the Queen's attitude of polite regret.

She recognized him immediately and braced herself for another unpleasant confrontation, but instead he arranged his features in an expression of polite regret.

If he ever were inquired about, polite regret and ignorance would be expressed.

Kit left the castle before lunch with polite regrets to the prince and his hosts for his abrupt departure.

Ordinarily-particularly in the middle of all-out war with the Alliance-the Senate would've responded with polite regrets.

De Morgan had refused the invitation, with polite regrets; he was engaged elsewhere.

There was no response, not even the polite regrets of a busy or sleeping recipient.