robustness - adj.
(robuster, robustest)
1 (of a person, animal, or thing) strong and sturdy, esp. in physique or construction.
2 (of exercise, discipline, etc.) vigorous, requiring strength.
3 (of intellect or mental attitude) straightforward, not given to nor confused by subtleties.
4 (of a statement, reply, etc.) bold, firm, unyielding.
5 (of wine etc.) full-bodied.

robustly adv. robustness n. [F robuste or L robustus firm and hard f. robus, robur oak, strength]