Perhaps she was Overscrupulous in her reserve.
"The Way of Ambition"
Robert Hichens
Accompanied perhaps by Riggs, who had shown himself not Overscrupulous until he quarreled with his employer, he had gone across to the railroad embankment, and, by jumping in front of the car, had caused Halsey to swerve.
"The Circular Staircase"
Mary Roberts Rinehart
We will rout these fancies of an Overscrupulous generosity, my dear Lady Busshe.
"The Complete Project Gutenberg Works of George Meredith"
George Meredith