Adjective defenseless has 3 senses
  1. defenseless, defenceless - lacking protection or support; "a defenseless child"
    Antonym: invulnerable (indirect, via vulnerable)
  2. naked, defenseless - having no protecting or concealing cover; "naked to mine enemies"- Shakespeare
    Antonyms: protected, secure (indirect, via unprotected)
  3. defenseless, defenceless - lacking weapons for self-defense
    Antonym: armed (indirect, via unarmed)
,Adverbial defenseless has 1 sense
  1. defenseless, defencelessly - without defense; "the child was standing in the middle of the crossfire, defenselessly"
    Derived from adjective defenseless1
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