1.Definition: (used of persons and their behavior) cultivated and genteel
"She was delicate and refined and unused to hardship", "Refined people with refined taste"
2.Definition: freed from impurities by processing
"Refined sugar", "Refined oil", "To gild refined gold"
3.Definition: precise to a fine degree
"Due to the limitations of the available tools, a more refined analysis of the data may be necessary"
4.Definition: showing a high degree of refinement and the assurance that comes from wide social experience