δύσκλιτος
From LSJ
τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
English (LSJ)
δύσκλιτον, hard to inflect, irregular, δ. ῥήματα, title of work by Eulogius, EM809.33.
Spanish (DGE)
-ον
gram. irregular, anómalo Περὶ δυσκλίτων ῥημάτων tít. de una obra de Heracl.Mil., Eust.1815.5, cf. EM 809.33G.
German (Pape)
[Seite 682] schwer zu decliniren, E. M.