Remarkably means to a degree that catches your attention or surprises you because it's unusual or impressive. When something happens remarkably quickly, it happens much faster than you'd normally expect. When someone performs remarkably well on a difficult test, they've done far better than most people would.

When something is remarkably good, bad, fast, or slow, it's so notable that people naturally want to remark on it. A remarkably tall building makes you stop and look up. A remarkably kind gesture stands out because most people wouldn't go that far to help.

You might say your friend is remarkably good at chess if she beats players much older than her, or that a plant grew remarkably fast if it doubled in size in just one week. The word tells us that what happened exceeded normal expectations in a noticeable way.

Remarkably can describe positive or negative things: someone might heal remarkably quickly from an injury, or a storm might cause remarkably severe damage. The word itself doesn't judge, it just highlights that something deserves special attention.