The Chinese word 气愤 (qìfèn), meaning "indignant" or "furious," is a coordinative compound formed by combining two characters with closely related meanings. The first character, 气 (qì), originally meaning "air" or "breath," here conveys the concept of "anger" or "emotional energy" (as in 生气, to be angry). The second character, 愤 (fèn), specifically means "resentment" or "indignation." Together, they create a single, more intense concept through synonym compounding, where both elements reinforce and narrow each other's meaning, resulting in a term that describes a state of heated anger driven by a sense of injustice or strong displeasure.