Something that is rounded has smooth edges instead of sharp corners. Most phones, for example, have rounded edges so that they don't hurt your hands.

Rounded can also describe someone who has developed many different abilities and interests. A well-rounded student might excel at math, play an instrument, participate in sports, and volunteer in the community. Being well-rounded means growing in multiple directions instead of focusing only on one thing. It suggests balance and breadth: being capable across several areas of life, combining skills in academics, athletics, arts, and other domains.