|1.||[ adjective ] permitting little if any light to pass through because of denseness of matter|
"dense smoke" "heavy fog" "impenetrable gloom"
|2.||[ adjective ] closely crowded together|
"a compact shopping center" "a dense population" "thick crowds"
|3.||[ adjective ] hard to pass through because of dense growth|
"dense vegetation" "thick woods"
|4.||[ adjective ] having high relative density or specific gravity|
"dense as lead"
|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"