反义词是unarmed，例如：
1.The soldiers were trained in unarmed combat.士兵接受徒手格斗训练。
2. He was alone, and unarmed, and far from any help; and the night was closing in.他孤身一人，手无寸铁，没有任何帮助；而黑夜正在逼近。
3. They were unarmed, and taken by surprise, and what can two animals do against hundreds?他们手无寸铁，而且遭到偷袭，两只动物怎么对付得了几百只呢？
