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