Pronunciation: (hev'u-lē),[key] —adv. 1. with a great weight or burden: a heavily loaded wagon. 2. in a manner suggestive of carrying a great weight; ponderously; lumberingly: He walked heavily across the room. 3. in an oppressive manner: Cares weigh heavily upon him. 4. severely; greatly; intensely: to suffer heavily. 5. densely; thickly: heavily wooded. 6. in large amounts or in great quantities; very much: It rained heavily on Tuesday. 7. without animation or vigor; in a dull manner; sluggishly.