rigorousness

n [U].

Right Reverend, right-handed, right-minded, right-mindedness, righteous, righteously, righteousness, rightful, rightfully, rightly, rightness, rights issue, rigid, rigidity, rigidly, rigmarole, rigor, rigor mortis, rigorous, rigorously, rigour (US rigor), rile, rim, rime, rimless, rind, ring, ring binder, ring mains, ring off, ring out, ring road, ring up, ring-finger, ring-pull, ring-shaped, ringer, ringleader, ringlet, ringmaster,