9 letters · 13 points in Scrabble
adjective marked by lack of definite plan or regularity or purpose; jumping from one thing to another
originFrom Latin dēsultōrius (“hasty, casual, superficial”), from dēsultor (“a circus rider who jumped from one galloping horse to another”), from dēsiliō (“jump down”), from dē (“down”) + saliō (“jump, leap”).
Etymology from Wiktionary, CC BY-SA 3.0