IMPERCEPTIBILITY • FREE-TRANSLATOR.COM • Definition of Imperceptibility

... blue infinity, a vast semicircle of ultramarine domed by a hemisphere of azure; and it was noticeable how much vaster the sea looked than the sky. We were so high above it that the heavings of its longer swells were leveled to imperceptibility, while the waves only graved the motionless surface. Here and there the rufflings of a breeze showed in darker markings, like the changes on watered silk. The most ephemeral disturbance made the most show. Dotted over the blue expanse were ...

— Noto, An Unexplored Corner of Japan • Percival Lowell