Uncopiable

a. (UN-¹ 7 b.)

1846.  Worcester (citing Ware).

1856.  Ruskin, Mod. Paint., III. IV. ix. § 17. His [sc. Turner’s] finish is so delicate as to be nearly uncopiable.

1870.  Lowell, Among My Books, Ser. I. (1873), 226. This country tradesman’s son … could set high-bred wits … uncopiable lessons in drawing gentlemen.