(of horses )马 easily excited or frightened and therefore difficult to control 易惊而难以驾驭的 (of people )人 not very serious and with ideas and feelings that keep changing 轻浮的;易变的;反复无常的 - (especially North American English,
business )商业 likely to change suddenly 说变就变的;变幻莫测的 skittish financial markets 变幻莫测的金融市场
Word Originlate Middle English: perhaps from the rare verb skit ‘move lightly and rapidly’.