15 letters · 20 points in Scrabble
adjective adhering to an attitude or position widely held to be outmoded
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English reconstructed English unreconstructed From un- + reconstructed.
Etymology from Wiktionary, CC BY-SA 3.0