The term **气概** is a compound word formed through semantic combination, where the first character **气** (qì), meaning "spirit," "energy," or "vital force," modifies and is complemented by the second character **概** (gài), which originally meant "manner" or "general bearing." Together, they create an abstract noun that synthesizes these concepts to signify the **impressive demeanor and lofty spirit of a person**, particularly referring to their noble character, heroic bearing, or indomitable will in the face of challenge. This formation is a classic example of how Chinese builds nuanced, qualitative nouns by pairing a foundational, often abstract element (气) with a character that specifies its manifestation or scope (概).