Related Clues:

• Stuffed to the limit
• Crawling
• A little on the slow side
• Not sparse
• Crowded around
• Working class?
• Not Mensa material
• Compacted
• Filled to capacity
• Like thickets
• Saturated (with)
• Just above the water
• Not the sharpest pencil in the box
• Teeming, as with bees
• Not very sharp