缺少防范的用英语怎么说

缺少防范的英文说法是"lacking in vigilance"或者"negligent".
来源："vigilance"和"negligent"都是来自拉丁语。"Vigilance"来自拉丁语"vigilantia"，意思是警戒或小心。"Negligent"来自拉丁语"negligere"，意思是不负责任或疏忽。
一些例句：
The company was negligent in its safety inspections, leading to the accident.
The security guards were criticized for their lack of vigilance in preventing the theft.
The government has been accused of being negligent in its response to the crisis.
中文翻译：
这家公司在安全检查中疏忽大意，导致了这场事故。
保安人员因缺少警惕导致盗窃事件而受到批评。
政府在应对危机时被指责缺乏防范。