Definition of Defenseless

Adjective: defenseless  di'fen(t)s-lus
Usage: US (elsewhere: defenceless)

1. Lacking protection or support
   "a defenseless child";
   - defenceless [Brit, Cdn]
    
2. Having no protecting or concealing cover
   "defenseless to mine enemies";
   - naked, defenceless [Brit, Cdn]
    
3. Lacking weapons for self-defense
   - defenceless [Brit, Cdn]

Adverb: defenseless  di'fen(t)s-lus
Usage: US (elsewhere: defenceless)

1. Without defense
   "the child was standing in the middle of the crossfire, defenseless";
   - defenceless [Brit, Cdn], defenselessly [US], defencelessly [Brit, Cdn]

See also:
defensed
defenselessly