unpredictable
🇺🇸
/ˌʌnprɪˈdɪktəbl/
🇬🇧
/ˌʌnprɪˈdɪktəbl/
Not able to be known in advance because it changes often or depends on many things.
The weather is unpredictable, so always carry an umbrella just in case.
날씨는 예측할 수 없으니, 만일을 대비해 항상 우산을 챙기세요.
A person whose actions or behavior cannot be guessed beforehand.
He is so unpredictable that you never know how he will react.
그는 매우 예측할 수 없어서, 그가 어떻게 반응할지 절대 알 수 없습니다.