深夜独自走回家时，他心里涌起一阵莫名的不安。

Walking home alone at night, he felt a sudden ___uneasiness creeping over him.

长途飞行后，她的不适让她无法入睡。

After the long flight, her ___uneasiness made it hard to fall asleep.

政治动荡引发了民众的普遍不安。

The political turmoil caused widespread ___uneasiness among the people.