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Synonyms for toughness
noun
The fact or condition of being rigorous and unsparing:
austerity, hardness, harshness, rigidity, rigor, rigorousness, severity, sternness, strictness, stringency. See easyUnwavering firmness of character, action, or will:
decidedness, decision, decisiveness, determination, firmness, purpose, purposefulness, resoluteness, resolution, resolve, will, willpower. See certain, strong
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