Undoubtable

a. (and adv.). [UN-¹ 7 b, 5 b.] That cannot be doubted; indubitable.

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c. 1425. St. Christina, Prol. 40, in Anglia, VIII. 119. As wee haue leeryd be ful certeyne and vndoutabil tellynge.

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1529. More, Dyaloge, IV. Wks. 265/1. That the gospell he had preached, was the plain, sure and undoubtable trouth.

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1611. Cotgr., Indubitable, vndoubtable.

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1665. J. Sergeant, Sure Footing, 233. How can their Authority ever come to be undoubtable or certain?

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1815. Lamb, Lett. (1883), I. 284. Let me … mention that my brother … has picked up an undoubtable picture of Milton.

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1870. Daily News, 21 Oct. The leading facts … I have … from an undoubtable source.

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† b. As adv. = next. Obs.

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c. 1440. Alph. Tales, 196. Þat þou may trow vndowtable at þe rysyng of deade folk sall be trew.

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1513. Douglas, Æneid, VI. v. 56. Anchises get!… Discend vndowtable of the goddis blude.

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