Adjective
-
slow to learn or understand
lacking intellectual acuity
"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 make some really dumb decisions"
"he was either normally stupid or being deliberately obtuse"
"worked with the slow students"
-
having high relative density or specific gravity
"dense as lead"
-
hard to pass through because of dense growth
"dense vegetation"
"thick woods"
-
permitting little if any light to pass through because of denseness of matter
"dense smoke"
"heavy fog"
"impenetrable gloom"