To a great degree; in large amounts or quantities. The rain fell heavily throughout the night, causing flooding in some areas.
In a manner that is burdensome or oppressive. He sighed heavily, feeling the weight of the decision he had to make.
With great force or intensity. The boxer punched heavily, knocking his opponent to the ground.
In a way that is serious or intense. The news was heavily criticized by the public for its biased reporting.