What is the meaning of toughness?

Enduring strength and energy.
- synonyms: stamina, staying power
The property of being big and strong.
- synonyms: huskiness, ruggedness
The elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking.
- synonyms: temper
Impressive difficulty.
- synonyms: formidability

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APA	WordNet. (2010). toughness. Retrieved September 25, 2026, from http://smartdefine.org/toughness/definitions/1316771
Chicago	WordNet. 2010. "toughness" http://smartdefine.org/toughness/definitions/1316771 (accessed September 25, 2026).
Harvard	WordNet 2010, toughness, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/toughness/definitions/1316771>.
MLA	WordNet. "toughness" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/toughness/definitions/1316771>

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