11 letters · 15 points in Scrabble
adjective (of weather or climate) not mild; subject to extremes
adjective excessive in behavior
adjective given to excessive indulgence of bodily appetites especially for intoxicating liquors
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- English temperate English intemperate From in- + temperate.
Etymology from Wiktionary, CC BY-SA 3.0