a. [UN-1 7 b.]
† 1. Incapable of deceiving; undeceptive; certain, sure. Obs.
1534. More, Comf. agst. Trib., II. xvi. (1553), I vj. Shall you not lacke to enquyer, by what sure & vndeceiuable tokens, a man maye descerne ye true reuelacions from ye false illusions?
1581. J. Bell, Haddon’s Answ. Osor., 453 b. Where be those irreproveable Testimonyes, and undeceiveable examples, whereupon you crake so lustely?
1650. Baxter, Saints’ R., II. iv. (1662), 220. The way that this Testimony hath come down to us is a certain and undeceivable way.
1669. Sturmy, Mariner’s Mag., V. viii. 26. These Rules are undeceivable with Authority.
2. Incapable of being deceived.
1608. Bp. Hall, Epist., I. i. Shame not to haue the weake eyes of the world see that, which once your vndeceiuable Iudge shall see.
1687. Boyle, Martyrd. Theodora, ii. 20. They look on Sufferers for truth with His undeceiveable Eyes.
1827. Pollok, Course T., VIII. 290. His votaries, who left the earth Secure of bliss, around him, undeceived, Stood, undeceivable till then.
1860. Ruskin, Mod. Paint., V. VI. ix. § 14. An undeceivable common sense, and an obstinate rectitude.
Hence Undeceivableness; Undeceivably adv.
1560. Becon, New Catech., Wks. 1564, I. 314 b. Tokens or markes, whereby we may truely and vndeceaueably knowe the true Catholyke and Apostolyke church.
1685. H. More, Paralip. Prophet., Pref. p. xii. To acknowledge the Autority and Undeceivedness … though not Undeceivableness or Infallibility of the ancient Catholick Church.
