1579–80. North, Plutarch (1595), 1083. After he had measured the height of the wall, he reported that the place was not vnscalable.
1611. Shaks., Cymb., III. i. 20. Your Isle, which stands As Neptunes Parke, ribb’d, and pal’d in With Oakes vnskaleable.
1652. Heylyn, Cosmogr., III. 222. High and unscalable walls.
1751. R. Paltock, P. Wilkins, I. 91. I saw no Entrance into the Island,… nor any thing but the same unscalable Rock.
1818. Keats, Endym., III. 23. There are throned seats unscalable But by a patient wing.
1850. T. T. Lynch, Theoph. Trinal, xi. 211. The frowning unscalable rocks of worldly custom, prejudice, and fact.
