n.不安全,不牢靠,局促不安,无把握
Crime creates feelings of insecurity in the population.
犯罪活动引起人们的不安全感。
Many believe it was his shyness and insecurity which let him down.
很多人认为是他的腼腆和缺乏安全感拖了他的后腿。
Insecurity might creep in.
可能会不知不觉地产生不安全感。