通达 (tōng dá) is an elegant, somewhat formal adjective meaning 'thorough', 'well-informed', or 'unobstructed'. Literally, 通 (tōng) means 'to pass through' or 'comprehensive', and 达 (dá) means 'to reach', 'to achieve', or 'to understand fully'. Together, they convey a sense of clarity, mastery, and smooth flow—whether referring to knowledge, communication, transportation, or personal insight. It often describes people who possess deep, integrated understanding—not just surface-level facts—but also the ability to see connections and act wisely.

This word appears frequently in written Chinese and formal speech, especially in contexts like education, governance, philosophy, and infrastructure. You’ll hear it describing clear thinking ('思路通达'), well-connected transport networks ('交通通达'), or a person’s broad-minded, discerning outlook ('学识通达'). Though positive and respectful, it’s rarely used in casual daily chat—it carries a tone of maturity and cultivation.