WordWeb Online

1. Showing or motivated by sympathy, understanding, and generosity
   "kindly criticism"; "a kindly act";
   - charitable, benevolent, sympathetic, good-hearted, openhearted, large-hearted
    
2. Pleasant and agreeable
   "a kindly climate"; "kindly breeze"

1. In a kind manner or out of kindness
   "He spoke kindly to the boy"; "she kindly overlooked the mistake"

Derived forms: kindlier, kindliest

See also: benign, benignant, kind

Antonym: unkindly