Without weapons of any kind, the people of the town were completely 'defenseless'.
Don't hurt them. They're just poor, 'defenseless' [='helpless'] animals.
The disease leaves the body 'defenseless against' infection.
(..) The Fifth Element... Take the Stones. My Lord, if you take the weapon, we will be defenceless when the Evil returns. - ln years, when Evil returns, so shall we. Professor! Don't move! l've a gun! (..)1997 The Fifth Element
(..) I told you, I don't care! You'll have to wait! Hey, hey, is that really necessary? Why don't you mind your own business. Well, I think hitting a defenceless child is my business. - You're ugly. - What? - You're ugly. - You are. (..)1991 TvShow: Seinfeld Title: The Parking Garage Season: 3 Episode 6
(..) - Goodbye, brother. - Goodbye, brother. They have attacked an unarmed village with rocket bombs and murdered defenceless, innocent and peaceful citizens of Oceania. This is no longer war. This is cold-blooded murder. Until now, the war has been conducted with honour and bravery, until this moment. (..)1984 1984