我们的许多员工都很担心，因为他们的工作没有保障。

Many of our staff are worried because their jobs are ___insecure.

孩子们在不安全的街区玩耍时感觉不安全。

Children feel unsafe playing in an ___insecure neighbourhood.

投资者因不稳定的经济状况而保持谨慎。

Investors were wary due to the ___insecure economic situation.