a. (UN-1 7 b, 5 b.)

1

1611.  Cotgr., Irreveland, vnreuealable, not to be reuealed.

2

1826[?].  Coleridge, Ne Plus Ultra, 11. The Dragon foul and fell—The unrevealable, And hidden one.

3

1846.  G. Moore, Power of Soul (ed. 2), 9. These proposers of an unrevealable divinity.

4