15 letters · 23 points in Scrabble
adjective violating accepted standards or rules
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 sportsmanlike English unsportsmanlike From un- + sportsmanlike.
Etymology from Wiktionary, CC BY-SA 3.0