10 letters · 12 points in Scrabble
adjective lacking in caution
adjective carelessly failing to exercise proper caution
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- English cautious English incautious From in- (negative prefix) + cautious.
Etymology from Wiktionary, CC BY-SA 3.0