Synonyms: hardness, ruggedness
Definition: the quality of being difficult to do
Usage: he assigned a series of problems of increasing hardness; the ruggedness of his exams caused half the class to fail
Similar words: difficultness, difficulty
Definition: the quality of being difficult
Usage: they agreed about the difficulty of the climb
Synonyms: ruggedness
Definition: the quality of being topologically uneven
Usage: the ruggedness of the mountains
Similar words: unevenness, variability
Definition: the quality of being uneven and lacking uniformity
Synonyms: huskiness, toughness, ruggedness
Definition: the property of being big and strong
Similar words: strength
Definition: the property of being physically or mentally strong
Usage: fatigue sapped his strength