bn:00042969n
Noun Concept
EN
hardness  ruggedness
EN
The quality of being difficult to do WordNet 3.0
Definitions
Examples
Relations
Sources
EN
The quality of being hard. Wiktionary
Quality of being hard. Wiktionary (translation)
The state of being rugged, or degree to which something is rugged. Wiktionary
State of being rugged. Wiktionary (translation)
EN
He assigned a series of problems of increasing hardness WordNet 3.0 & Open English WordNet
The ruggedness of his exams caused half the class to fail WordNet 3.0 & Open English WordNet
WordNet 3.0 & Open English WordNet
Wiktionary