defenseless

Adjective

• lacking weapons for self-defense

• having no protecting or concealing cover
  • naked to mine enemies- Shakespeare
    

• lacking protection or support
  • a defenseless child
    

Adverb

• without defense
  • the child was standing in the middle of the crossfire, defenselessly
    

Related words

• Synonyms: 
  defenceless , naked , defenselessly , defencelessly