1748. Chesterf., Lett. (1774), I. 336. Discovering to them such an unretentive weakness as must convince them that you will tell it to twenty others.
1782. Baker, Biog. Dramatica, I. 238/2. So unretentive was his memory.
1825. Coleridge, Aids Refl., 363. You are not so unretentive a Scholar as to have forgotten the pateris et auro of your Virgil.
1857. [J. B. Hume], Poems Early Years, 165. What further may have chancd my sleepy brain, In unretentive dulness, noted not.