Toughness exuded from the young man since he could take any insult and punch without even flinching.

Due to the toughness of the game, only a select few dedicated athletes will make the football teams of the NFL.

The toughness of some of the gems in the world like diamonds and jade are more difficult to break than most other gems.

After training for 8 hours a day for the past three months, the toughness of the trainers could be seen when they whizzed right past the other runners.

Every a bully’s toughness may appear scary when he dominates over his victim, but usually his self-esteem is low and he acts this way to make himself feel better.