1. in a manner that gives confidence, comfort, or relief; in a way that removes doubt or fear
She spoke reassuringly to calm the nervous passengers.
Ela falou de forma tranquilizadora para acalmar os passageiros nervosos.
2. with an attitude or tone that inspires trust and confidence
The doctor smiled reassuringly before beginning the examination.
O médico sorriu de forma tranquilizadora antes de começar o exame.