ruggedness

Noun
  1. The property of being big and strong (synset 105038369)
    is a type of: strength - the property of being physically or mentally strong
    same as: huskiness, toughness
  2. The quality of being topologically uneven (synset 104779627)
    "the ruggedness of the mountains"
    is a type of: unevenness, variability - the quality of being uneven and lacking uniformity
    subtypes: hilliness - the quality of being hilly
  3. The quality of being difficult to do (synset 104717864)
    "he assigned a series of problems of increasing hardness"; "the ruggedness of his exams caused half the class to fail"
    is a type of: difficultness, difficulty - the quality of being difficult
    same as: hardness

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