Impassioned means filled with intense emotion and expressed with deep feeling. When someone gives an impassioned speech, they believe powerfully in what they're saying, and that conviction comes through in their voice, their gestures, and their energy.

You can hear the difference between someone casually mentioning they'd like a longer recess and someone delivering an impassioned argument about why recess matters for student health and happiness. The second speaker feels it deeply and wants others to feel it too.

A scientist might write an impassioned defense of protecting endangered species. A student council candidate might make an impassioned plea for better school lunches. Martin Luther King Jr.'s speeches were impassioned because he spoke with tremendous feeling about justice and equality.

Impassioned doesn't mean angry or out of control. It means speaking or writing with genuine fire and conviction, letting your deep feelings shine through your words in a way that moves others and makes them listen.