unparalleled robustness; exceptionally robust health
Emphatic expression meaning 'so robust that nothing compares'. Often used to describe a person's physical constitution or, by extension, the sturdiness of systems or objects.
My grandfather is of unparalleled robustness; even at 90, he never misses his daily walk.
This safe has an exceptionally robust construction and cannot be broken by any tool.
Compound of 頑健 (robust, sturdy) and 無比 (unparalleled, matchless). The exact historical derivation is uncertain, but the word is formed from standard Sino-Japanese morphemes.