instability
🇺🇸
/ˌɪnstəˈbɪləti/
🇬🇧
/ˌɪnstəˈbɪləti/
When something is not steady or secure and can change or fail quickly.
The country faced political and economic instability after the war.
政治的および経済的不安定
When someone's mind or behavior is not stable and can change suddenly.
Due to the stress, he showed signs of mental instability.
精神的不安定の兆し