dense
adjectiveUK /dɛns/
US /dɛns/
Something dense is packed so tightly that there is little space inside.
The forest was so dense that sunlight could barely reach the ground.
OTHER MEANINGS
2. Hard to understand because it is complicated.
The book was full of dense scientific ideas.
3. Not very smart or quick to learn.
He felt dense for not solving the easy puzzle.
4. Containing a lot of something in a small space.
This cake is dense and rich with chocolate.