(UN-1 12; cf. next.)
1863. Mill, Lett. (1910), I. 272. The doctrine of unknowability.
1871. R. H. Hutton, Ess., I. 23. The unknowability of the primal Cause.
1899. Christianity & Anti-Christianity (ed. 2), 306. A Church of Humanity. This, accepting the agnostic principle of the unknowability of God, who cannot, therefore, be the object of our worship, finds such an object in Humanity.
1916. Zangwill, The War for the World, 34. Nor does the unknowability of the futurewhich is at worst merely partialprevent our trying to mould it to an ideal pattern conceived in our consciousness.