Definition of strenuous adjective from the Oxford Advanced Learner's Dictionary

     

    strenuous

     adjective
    adjective
    BrE BrE//ˈstrenjuəs//
     
    ; NAmE NAmE//ˈstrenjuəs//
     
    Exercise
     
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  1. 1needing great effort and energy synonym arduous a strenuous climb Avoid strenuous exercise immediately after a meal. How about a stroll in the park? Nothing too strenuous. Avoid tasks which require strenuous physical activity. See related entries: Exercise
  2. 2showing great energy and determination The ship went down although strenuous efforts were made to save it. The plan has met with strenuous opposition.
  3. Word Origin early 17th cent.: from Latin strenuus ‘brisk’ + -ous.
See the Oxford Advanced American Dictionary entry: strenuous