ppl. a. (UN-1 8.)
1787. Whitaker, Mary Q. Scots Vind., I. 62. They thus condemn the Queen … upon letters unauthenticated by the producers.
1823. Lingard, Hist. Eng., VI. 316. The contradictory and unauthenticated statements of her friends and enemies.
1882. Farrar, Early Chr., II. 533. No Apostolic Church would have paid attention to an unauthenticated epistle.
