Expression of surprise, contempt, outrage, disgust, boredom, or frustration.
benignant
indulgent, charming and graceful
compassionate
elegant and with good taste
kind and warmly courteous
full of grace
magnanimous, without arrogance or complaint, benevolently declining to raise controversy or insist on possible prerogatives.
tactful
Well, typically used to express exasperation, a matter-of-fact or unenthusiastic attitude, or helpless acceptance of something surprising.