相关单词近义词 unpredictability 不可预测性, whimsicality 反复无常, changeability 变化无常, variability 易变, impulsiveness 冲动, unreliability 不可靠性, fickleness 变化无常, arbitrariness 任意, flightiness 轻浮, whimsey 怪念头, whimsy 怪念头临近词capricious 返回 capriciousness