1. superlative form of thick: having the greatest width, depth, or density
2. superlative form of thick: most crowded or concentrated
3. superlative form of thick: most stupid or slow to understand
Usage: informal; potentially offensive

Examples

• The oak tree had the thickest trunk in the forest.
• This is the thickest book on the shelf.
• The fog was thickest near the river.
• The crowd was thickest around the main stage.
• She applied the paint in the thickest layer possible.
• The jungle growth was thickest in the valley.
• He’s the thickest student in our class.