mirrorlike

Next door they were skating on a surface so mirrorlike that, in fact, it was a mirror.

Here we pass a still, mirrorlike pool, and there a deep fissure from which comes the gurgle of a subterranean river.

This mirrorlike gaze and those delicate hands irritated Prince Andrew, he knew not why.

We came out into the open sea finally—a broad, empty expanse, with a mirrorlike surface.

The night was perfectly calm; the stars glittering overhead were reflected on the mirrorlike surface of the water.