dense

Etymology

From Middle French dense, from Latin dēnsus, from Proto-Indo-European *dens- (“thick, dense”).

adj

1. Having relatively high density.
2. Compact; crowded together.
3. Thick; difficult to penetrate.
4. Opaque; allowing little light to pass through.
5. Obscure, or difficult to understand.
6. (mathematics, topology) Being a subset of a topological space that approximates the space well. See the Wikipedia article on dense sets for a mathematical definition.
7. (of a person) Slow to comprehend; of low intelligence.
   There are times when systems like GPT-4 seem to mimic human reasoning, but there are also times when they seem terribly dense. “These behaviors are not always consistent,” Ece Kamar, a Microsoft researcher, said. 2023-05-16, Cade Metz, “Microsoft Says New A.I. Shows Signs of Human Reasoning”, in The New York Times, →ISSN

noun

1. A thicket.