1 calm and not showing emotion, even if you feel angry, afraid etc: Her voice was resonant and controlled as she delivered her resignation speech.
2 a movement, action, situation etc that is controlled is one that is carefully and deliberately done in a particular way, or made to have particular qualities: The chicks are hatched in a controlled environment.
3 limited by a law or rule: controlled parking zones

Longman dictionary of contemporary English. 2004.