12 letters · 14 points in Scrabble
noun the quality of being unclear or abstruse and hard to understand
noun wisdom that is recondite and abstruse and profound
originEtymology tree English abstruse Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English abstruseness From abstruse + -ness.
Etymology from Wiktionary, CC BY-SA 3.0