adj.
marked by great psychological weight; weighted down especially with sadness or troubles or weariness; "a heavy heart"; "a heavy schedule"; "heavy news"; "a heavy silence"; "heavy eyelids"
adj.
slow and laborious because of weight; "the heavy tread of tired troops"; "moved with a lumbering sag-bellied trot"; "ponderous prehistoric beasts"; "a ponderous yawn"
adj.
of the military or industry; using (or being) the heaviest and most powerful armaments or weapons or equipment; "heavy artillery"; "heavy infantry"; "a heavy cruiser"; "heavy guns"; "heavy industry involves large-scale production of basic products (such as steel) used by other industries"