General kindness:
* Kind (the most straightforward and common option)
* Benevolent (implies a desire to do good)
* Compassionate (emphasizes empathy and concern for others)
* Generous (focuses on giving and sharing)
* Gracious (highlights politeness and courtesy)
* Thoughtful (suggests consideration for others' feelings)
More specific types of kindness:
* Selfless (emphasizes putting others' needs before one's own)
* Altruistic (describes a selfless concern for others' welfare)
* Sympathetic (highlights understanding and sharing someone's feelings)
* Tender (suggests gentleness and care)
* Humanitarian (refers to concern for the welfare of humanity)
* Charitable (emphasizes giving to those in need)
The best adjective to use will depend on the specific context and the specific type of kindness you want to emphasize.