Pearly describes something that looks or shines like a pearl: smooth, lustrous, and gently glowing with a soft white or slightly iridescent color. When you see pearly white teeth in a toothpaste commercial, they're supposed to look as clean and bright as the inside of an oyster shell. The pearly gates of heaven in songs and stories are imagined as gleaming and beautiful, made of or decorated with pearls.

The word captures that special quality pearls have: they don't sparkle sharply like diamonds, but instead seem to glow from within with a creamy, soft light. Morning dew drops might look pearly when sunlight hits them just right. Certain nail polishes or paints are called pearly because they have that same gentle shimmer, reflecting light with a subtle rainbow effect.

You might describe the inside of a seashell as having a pearly sheen, or say that clouds have a pearly glow when the sun is behind them. The word suggests something precious, clean, and beautiful in a soft, understated way.