12 letters · 17 points in Scrabble
adjective unwilling to make or express an apology
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 apologetic English unapologetic From un- + apologetic.
Etymology from Wiktionary, CC BY-SA 3.0