unpredictable
🇺🇸
/ˌʌnprɪˈdɪktəbl/
🇬🇧
/ˌʌnprɪˈdɪktəbl/
adjective
R
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.
天気は予測不可能なので、念のため常に傘を持ち歩きましょう。
R
A person whose actions or behavior cannot be guessed beforehand.
He is so unpredictable that you never know how he will react.
彼は非常に予測不可能で、どのように反応するか決してわかりません。
translation
予測不可能な