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