Un-gelífendlíc

According to the Old English Dictionary:

un-gelífendlíc

adj. Incredible, extraordinary :-- Ungelýfendlíc tóbláwennys his innoð geswencte, Homl. Th. i. 86, 12. Ic ðé mæg tǽcan óþer ðing ðe dysegum monnum wile ðincan get ungeléfendlícre (-léfed-, Cott. MS.) hoc quod dicam, non minus mirum videatur, Bt. 38, 3; Fox 198, 30. un-gelifendlic