8 letters · 11 points in Scrabble
adjective (of roads) not leveled or drained; unsuitable for all year travel
adjective not arranged in order hierarchically
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 graded English ungraded From un- + graded.
Etymology from Wiktionary, CC BY-SA 3.0