rigorousness
  嚴厲;酷烈
  Rig·or·ous a.
  1. Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.
  He shall be thrown down the Tarpeian Rock
  With rigorous hands.   --Shak.
     We do not connect the scattered phenomena into their rigorous unity.   --De Quincey.
  2. Severe; intense; inclement; as, a rigorous winter.
  3. Violent. [Obs.] “Rigorous uproar.”
  Syn: -- Rigid; inflexible; unyielding; stiff; severe; austere; stern; harsh; strict; exact.
  -- Rig*or*ous*ly, adv. -- Rig*or*ous*ness, n.
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  rigorousness
       n : something hard to endure; "the asperity of northern winters"
           [syn: asperity, grimness, hardship, rigor, rigour,
            severity]