厚道 (hòu·dào) is an adjective describing someone who is sincerely kind, morally upright, and unpretentious—valuing honesty and fairness over self-interest. The character 厚 (hòu) means 'thick' or 'substantial', suggesting depth, sincerity, and generosity of spirit; 道 (dào) means 'way' or 'principle', evoking moral integrity and ethical conduct. Together, they convey the idea of having a 'thick' or 'solid' moral foundation—someone whose kindness is genuine, quiet, and unwavering, not performative or conditional.

This word is commonly used in informal and semi-formal speech to praise people—especially elders, neighbors, or colleagues—who act with quiet decency, keep promises, avoid gossip, and treat others with humility and fairness. It carries warm, respectful connotations and implies trustworthiness and emotional maturity. While often applied to individuals, it can also describe actions or attitudes reflecting deep-rooted virtue, such as forgiving a minor offense without complaint or helping quietly without seeking credit.