10 letters · 14 points in Scrabble
verb cause to become undone
verb become undone or untied
adjective not closed or secured
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 fastened English unfastened From un- + fastened.
Etymology from Wiktionary, CC BY-SA 3.0