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.
天氣難以預測，所以總是帶把傘以防萬一。
R
A person whose actions or behavior cannot be guessed beforehand.
He is so unpredictable that you never know how he will react.
他如此難以預測，你永遠不知道他會如何反應。
translation
不可預測, 難以捉摸