unrecoverablyadv.

c1475 (c1445) R. Pecock Donet (1921) 160 Ȝitt if þei be not vnrecouerabli dressable [perh. read unredressable], þouȝ to so redresse happily longiþ sum labour.

a1500 Disciplina Clericalis in Western Reserve Univ. Bull. (1919) 22 63 (MED) The Richessis of this world bien transitorie as the dreames of a slepyng man, the whiche wakyng in openyng of his eyen vnrecoverably he hath lost.

1578 F. Walsingham Let. 16 June in N. H. Nicolas Mem. Sir C. Hatton (1847) 60 We shall estrange Scotland from us unrecoverably.

1628 T. Spencer Art of Logick 125 Thereby we finde, that this condition befalls them secretly, certainly, vnrecoverably.

1691 R. Baxter Glorious Kingdom of Christ iv. 49 If..Marrying with Scythians [they] have lost the Name of Jews, they are unrecoverably Extinct.

1890 F. Marryat Scarlet Sin (1891) xxiii. 239 Lady Chichester..was laid back on her pillows unmistakably—unrecoverably—dead!

1899 54th Ann. Rep. Railroad Commissioners New Hampsh. i. p. xx Of the $40,000,000 invested in railroads in New Hampshire..about one fourth had..paid no dividends and much of it had been unrecoverably lost in insolvency proceedings.

1912 Coal Age 19 Oct. 542/1 The figure..would be rightly much enlarged if the coal taken by regular mining processes were compared with the 80,000,000, which..were being left unrecoverably in the hill.

1982 R. Kegan Evolving Self viii. 250 For the interpersonal partner,..one can be so close as to lose oneself unrecoverably.

2009 Sunday Business Post (Ireland) (Nexis) 9 Aug. More than three decades after its heyday, progressive rock remains unrecoverably out of fashion.