a. (UN-1 7 b.)
1832. Mrs. Gore, Fair of May Fair, III. 278. His judgment was invaluable,… and unimpugnable at Lloyd’s.
1857. Dickens, Dorrit, II. xxxii. Solely supported by his unimpugnable calculations.
1871. W. Whitman, Democratic Vistas, 65, note. Clearing the way for a Religion, sweet and unimpugnable alike to little child or great savan.
