de ‧ fence ‧ less BrE AmE British English , defenseless American English /dɪˈfensləs/ adjective
[ Word Family: noun : DEFENCE/DEFENSE , ↑ defendant , ↑ defender , ↑ defensiveness ; adjective : DEFENCELESS/DEFENSELESS , ↑ defensible ≠ ↑ indefensible , ↑ defensive ; adverb : ↑ defensibly ≠ ↑ indefensibly , ↑ defensively ; verb : ↑ defend ]
weak and unable to protect yourself from attack or harm:
a defenceless old lady