imponderable
adj
of which the effect or importance cannot be measured or estimated (作用或重要性)無法衡量的, 無法估計的. imponderable, n (usu pl 通常作復數) thing, eg a quality or an emotion, that is imponderable 無法估量的事物(如性質或感情)
the great imponderables of love and power 愛情與權力, 極難衡量的事物.