adv. ? Obs. [UN-1 11, 5 b: cf. prec.] Without doubt; indubitably.
c. 1425. St. Eliz., in Anglia, VIII. 107/26. Þoos þinges þat I perceyued vndoutably with myn eyen.
c. 1449. Pecock, Repr., I. v. 26. Hise iij. parties schal conferme vndoutabli al what is seid here.
a. 1513. Fabyan, Chron., VII. ccxxi. 244. Where thou sayest that Gregory myght haue confirmed all things vndowtably with this worde, that is sothe.