1. [ adjective ] permitting little if any light to pass through because of denseness of matter
Synonyms: impenetrable heavy

"dense smoke" "heavy fog" "impenetrable gloom"

Related terms: thick
2. [ adjective ] closely crowded together
Synonyms: thick compact

"a compact shopping center" "a dense population" "thick crowds"

Related terms: concentrated
3. [ adjective ] hard to pass through because of dense growth
Synonyms: thick

"dense vegetation" "thick woods"

Related terms: impenetrable
4. [ adjective ] having high relative density or specific gravity

"dense as lead"

Related terms: heavy
5. [ adjective ] slow to learn or understand; lacking intellectual acuity
Synonyms: dumb slow dull obtuse dim

"so dense he never understands anything I say to him" "never met anyone quite so dim" "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray "dumb officials"

Related terms: stupid
Similar spelling:   Dennise