12 letters · 17 points in Scrabble
adjective having or showing great excitement and interest
originFrom Ancient Greek ἐνθουσιαστικός (enthousiastikós), from either ἐνθουσιασμός (enthousiasmós) or ἐνθουσιάζω (enthousiázō) + -τικός (-tikós).
Etymology from Wiktionary, CC BY-SA 3.0