a factor that is difficult or impossible to estimate or assess 难以估量的因素,不可估量的因素 there are too many imponderables for an overall prediction. 做全面的预报有太多难以估量的因素。
adjective
difficult or impossible to estimate, assess, or answer 难以估量(或回答)的,不可估量(或回答)的 an imponderable problem of metaphysics. 难以回答的形而上学的问题。
(archaic or poetic/literary)very light (古 或 诗/文)非常轻的