dense
Having relatively high density.
{{U|compact}}; crowded together.
Opaque; allowing little light to pass through.
Obscure, or difficult to understand.
(topology) Being a subset of a topological space that approximates the space well. See the Wikipedia article on {{w|dense set}}s for a mathematical definition.
Slow to comprehend; of low intelligence.{{anchor|ADJ7}} {{q|of a person}}
A thicket.