Thick in example sentence
Don Quixote said that even if it reached to the bottomless pit he meant to see where it went to; so they bought about a hundred fathoms of rope, and next day at two in the afternoon they arrived at the cave, the mouth of which is spacious and wide, but full of thorn and wild-fig bushes and brambles and briars, so thick and matted that they completely close it up and cover it over.