A state of worry, uneasiness, or apprehension; feeling insecure or not at ease.
試験の結果が気になって不安で眠れない。
I'm anxious about the exam results and can't sleep.
母の病状が悪化して家族全員が不安を抱えている。
With my mother's condition worsening, the whole family is filled with anxiety.
新しい環境に慣れるまで不安が続くのは普通だ。
It's normal to feel anxious until you get used to a new environment.