arduousness

from WordNet (r) 3.0 (2006)
arduousness
    n 1: extreme effortfulness [syn: {arduousness}, {strenuousness}]
from The Collaborative International Dictionary of English v.0.48
Arduousness \Ar"du*ous*ness\, n.
   The quality of being arduous; difficulty of execution.
   [1913 Webster]
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