1.
[syn: arduousness, strenuousness]
The Collaborative International Dictionary of English v.0.48:
Strenuous \Stren"u*ous\, a. [L. strenuus; cf. Gr. ? strong,
hard, rough, harsh.]
Eagerly pressing or urgent; zealous; ardent; earnest; bold;
valiant; intrepid; as, a strenuous advocate for national
rights; a strenuous reformer; a strenuous defender of his
country.
[1913 Webster]
And spirit-stirring wine, that strenuous makes.
--Chapman.
[1913 Webster]
Strenuous, continuous labor is pain. --I. Taylor.
[1913 Webster] -- Stren"u*ous*ly, adv. --
Stren"u*ous*ness, n.
[1913 Webster]
WordNet (r) 3.0 (2006):
strenuousness
n 1: extreme effortfulness [syn: arduousness, strenuousness]