Other forms: kindheartedly
If you're kindhearted, you're a considerate and empathetic person. When someone loses their home in a fire, their kindhearted neighbors will pitch in to help them.
Kindhearted is almost a synonym of kind, but it implies an even deeper layer of sympathy and compassion. A truly kindhearted reaction to seeing someone who's lost or in trouble is to stop and help them. It's kindhearted to welcome new people to your community, to give money to someone who needs it, or to offer your subway seat to someone who looks tired. Your very favorite people are probably the ones who are most kindhearted.