hard to pass through because of dense growth
slow to learn or understand; lacking intellectual acuity
permitting little if any light to pass through because of denseness of matter
having high relative density or specific gravity
improperly forward or bold
a kind of pain such as that caused by a wound or a burn or a sore
be the source of pain
characterized by quickness and ease in learning
elegant and stylish
capable of independent and apparently intelligent action
painfully severe
quick and brisk
showing mental alertness and calculation and resourcefulness
