- 1containing a lot of people, things, plants, etc. with little space between them a dense crowd/forest areas of dense population
- 2difficult to see through synonym thick dense fog/smoke/fumes
- 3(informal) stupid How can you be so dense?
- 4difficult to understand because it contains a lot of information a dense piece of writing
- 5(technology) heavy in relation to its size Less dense substances move upward to form a crust.
denselyjump to other results
adverb a densely populated area densely covered/packed