uncharacterizable

Etymology tree
Proto-Indo-European *né
Proto-Indo-European *n̥-
Proto-Germanic *un-
Proto-West Germanic *un-
Old English un-
Middle English un-
English un-
Ancient Greek χαράσσω (kharássō)
Proto-Indo-European *-tḗr
Ancient Greek -τήρ (-tḗr)
Ancient Greek χαρακτήρ (kharaktḗr)
Proto-Indo-European *-id-
Proto-Indo-European *-yéti
Proto-Indo-European *-idyéti
Proto-Hellenic *-íďďō
Ancient Greek -ίζω (-ízō)
Ancient Greek χᾰρακτηρίζω (khăraktērízō)der.
Medieval Latin charactērizōder.
English characterize
Proto-Indo-European *-tḗr
Proto-Indo-European *-dʰlom
Proto-Indo-European *-dʰlis
Proto-Italic *-ðlis
Latin -bilis
Latin -ābilis
Old French -ablebor.
Middle English -able
English -able
English characterizable
English uncharacterizable
From un- + characterizable.