1. the quality or state of being thick; the measurement of how thick something is
2. the quality of being dense or having a heavy consistency
3. lack of intelligence or understanding
Usage: informal; sometimes offensive

Examples

• The thickness of the wall made it difficult to hang pictures.
• Measure the thickness of the board before cutting.
• The sauce had the perfect thickness for coating pasta.
• The thickness of the fog made driving dangerous.
• Ice thickness on the lake varies throughout winter.
• The book’s thickness made it hard to fit in my bag.
• Paint thickness affects the final appearance of the wall.