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