a. (UN-1 7 b.)
1611. Speed, Hist. Gt. Brit., IX. xx. 731/1. Our vulgar Bookes extant can hardly passe with a Iury of ordinary Criticks and Censors for vnchallengeable euidence.
1824. Scott, St. Ronan’s, xxxiii. His title and his paternal fortune, which he thought … might be rendered unchallengeable.
1847. Ld. Lindsay, Sk. Hist. Chr. Art, I. 61. The Byzantines … maintained a pre-eminence, unchallenged and unchallengeable, in the three sister arts.
1880. Muirhead, Gaius, II. § 119, note. A man, whose position as heir under the civil law was unchallenged and unchallengeable.
Hence Unchallengeably adv.
1827. Scott, Napoleon, c. VIII. 330. Annual expositions of national receipt and expenditure … which were, to outward appearance, unchallengeably accurate.
1866. F. G. Stephens, Eng. Children (1867), 32. This is unchallengeably true.
