ಅರ್ಥ : The quality of being topologically uneven.
ಉದಾಹರಣೆ :
The ruggedness of the mountains.
ಅರ್ಥ : The quality of being difficult to do.
ಉದಾಹರಣೆ :
He assigned a series of problems of increasing hardness.
The ruggedness of his exams caused half the class to fail.
ಸಮಾನಾರ್ಥಕ : hardness