12 letters · 16 points in Scrabble
adjective not able or fit to be repeated or quoted
adjective unique; - Theodosius Dobzhansky
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 repeatable English unrepeatable From un- + repeatable.
Etymology from Wiktionary, CC BY-SA 3.0