Arduousness
Part of speech: noun
Definition: the state of being arduous
Strenuousness
Part of speech: noun
Definition: The state or character of being strenuous; eagerness; earnestness; active zeal.
Arduousness as a noun is the state of being arduous while Strenuousness as a noun is the state or character of being strenuous; eagerness; earnestness; active zeal.
Part of speech: noun
Definition: the state of being arduous
Part of speech: noun
Definition: The state or character of being strenuous; eagerness; earnestness; active zeal.
We hope you now know whether to use Arduousness or Strenuousness in your sentence.