Word Study
    arduousness
WORDNET DICTIONARY
Noun arduousness has 1 sense
- arduousness(n = noun.attribute) strenuousness - extreme effortfulness; Array is a kind of effortfulness
 
Derived forms adjective arduous3, adjective arduous1, adjective arduous2
CIDE DICTIONARY
arduousness, n. 
                                            
                                         The quality of being arduous; difficulty of execution.                                                                                 [1913 Webster]                                                                                                                    
                                                                                    
            For further exploring for "arduousness" in Webster Dictionary Online
        

