curveball noun 2verb 1forms 3 noun2 •A forespin pitch thrown by rotating the index and middle fingers down and resulting in motion down "curve"He bit on a curveball in the dirt. •An unexpected turn of events initiated by an opponent or chance; an exception or outlier.Life has thrown him a few curveballs. verb1 •To throw a curveball.The news curveballed him. He'd been hamstrung and schizzed all the preceding weeks. He brooded in his den. — 2009 formscurveballed · curveballing · curveballs
