robust

Able to withstand adverse conditions

Evincing strength and health; strong; (often, especially) both large and healthy

Requiring strength or vigor

Sensible (of intellect etc.); straightforward, not given to or confused by uncertainty or subtlety

Rough; ruderare

Designed or evolved in such a way as to be resistant to total failure despite partial damagerare

Resistant or impervious to failure regardless of user input or unexpected conditionsrare

Not greatly influenced by errors in assumptions about the distribution of sample errorsrare

Of an individual or skeletal element: strongly built; muscular; not gracilerare