Strenuous /(?)/

Stren·u·ous

Strenuous

a.
  1. 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.
    And spirit-stirring wine, that strenuous makes.
    Strenuous, continuous labor is pain.