활기차다 (hwalgichada) means “full of energy,” “lively,” or “active” A. It describes a state of enthusiasm or vibrancy, often used to describe people, places, or atmospheres.
For example, you might say:
그는 오늘 활기차다. (“He is full of energy today.”)
시장 분위기가 활기차다. (“The atmosphere of the market is lively.”)
활발하다 (hwalbalhada) means “to be lively, active, or energetic”. It describes someone or something that is full of energy, socially engaging, or thriving.
For example:
그녀는 성격이 활발하다. → “She has a lively personality.”
무역이 활발하게 이루어지고 있다. → “Trade is actively taking place.”
활발하다 describes general liveliness full of energy, while
적극적이다 focuses more on initiative and engagement.