13 letters · 18 points in Scrabble
noun the trait of not being dependable or reliable
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 reliability English unreliability From un- + reliability.
Etymology from Wiktionary, CC BY-SA 3.0