defenseless
 (a.)無防備的


 De·fense·less, a. Destitute of defense; unprepared to resist attack; unable to oppose; unprotected. [Also spelled defenceless.]-- De*fense*less*ly, adv. -- De*fense*less*ness, n.

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 defenseless
      adj 1: lacking protection or support; "a defenseless child" [syn: defenceless]
      2: having no protecting or concealing cover; "naked to mine
         enemies"- Shakespeare [syn: naked]
      3: lacking weapons for self-defense [syn: defenceless]
      adv : without defense; "the child was standing in the middle of
            the crossfire, defenselessly" [syn: defencelessly]