defenceless adj.
VERBS be, feel, lie The city lay defenceless before the most powerful fighting force on the continent. | leave sb They were left virtually defenceless against enemy attack.
ADV. entirely, quite, totally, utterly She felt utterly defenceless. | almost, virtually
PREP. against They were completely defenceless against enemy attack.
PHRASES poor defenceless stealing money from a poor defenceless old lady
You can also check other dicts: defenceless (English, 中文解释 ), wordnet sense, Collins Definition