Noun
the quality of being difficult to do
the property of being big and strong
the quality of being topologically uneven
Source: WordNetDo not believe that man grows. No: he is born suddenly-a word, in a moment, penetrates his heart to a new throb. One scene can hurl him down from the ceiling of childhood on to the ruggedness of the road. Ghassan Kanafani
he assigned a series of problems of increasing hardness Source: Internet
the ruggedness of his exams caused half the class to fail Source: Internet
the ruggedness of the mountains Source: Internet
Gtech's managed a similar gambit to SanDisk here, by balancing ruggedness with speed, and this drive is specifically strong when it comes to drop protection - it isn't phased by a few bounces! Source: Internet
The austerity of the Sahel environment has ensured that only the most fit dogs survive and has accentuated the breed's ruggedness and independence. Source: Internet