1. heavy; weighty
2. heavy (feeling); depressed; gloomy; blue; uneasy
3. slow; sluggish; lumbering; ponderous; clumsy
4. important (position, responsibility, etc.); serious; grave
5. serious (punishment, illness, etc.); severe; critical
6. solid; established; dignified; sensible
7. heavy (shape or stones); solid stones that must be defended rather than sacrificed, despite the high cost of doing so