inconceptualizable

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *ən- Latin in-bor. Middle English in- English in- Proto-Indo-European *ḱe Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Proto-Indo-European *kap- Proto-Indo-European *-yéti Proto-Indo-European *kapyéti Proto-Italic *kapjō Old Latin kapiō Latin capiō Ancient Greek σῠλλᾰμβᾰ́νω (sŭllămbắnō)calq. Latin concipiō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin conceptus Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālis Medieval Latin conceptuālisbor. English conceptual Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō)bor. Late Latin -izōder. Middle French -iserbor. Middle English -isen English -ize English conceptualize Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English conceptualizable English inconceptualizable From in- + conceptualizable. First attested in the 20th century.

来源：wiktionary