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

     

    supine

     adjective
    adjective
    BrE BrE//ˈsuːpaɪn//
     
    , also BrE//ˈsjuːpaɪn//
     
    ; NAmE NAmE//ˈsuːpaɪn//
     
    (formal) Position and movement
     
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  1. 1lying flat on your back a supine position Clare remained supine, her eyes closed. compare prone See related entries: Position and movement
  2. 2(disapproving) not willing to act or disagree with somebody because you are lazy or morally weak the supine attitude of some of our politicians
  3. Word Origin late Middle English: the adjective from Latin supinus ‘bent backwards’ (related to super ‘above’); the noun from late Latin supinum, neuter of supinus.
See the Oxford Advanced American Dictionary entry: supine