adj.不可预知的，难以预料的，不可预测的，无法预言的，(人)善变的，难以捉摸的

The weather in London is notoriously unpredictable.
伦敦的天气以变化无常而著称。
Her mood swings were unpredictable, making it difficult for friends to know how to act around her.
她的情绪波动难以预料，使得朋友们很难知道如何与她相处。
The stock market's behavior is inherently unpredictable, which is why investing carries risks.
股市的行为本质上是不可预测的，这就是投资存在风险的原因。
The outcome of the election was completely unpredictable due to the high number of undecided voters.
由于大量选民尚未决定投票意向，选举结果完全无法预知。
His artistic style is unpredictable; he constantly experiments with new techniques and mediums.
他的艺术风格变幻莫测，不断尝试新的技术和媒介。
The path of a hurricane can be highly unpredictable, causing widespread panic and preparation challenges.
飓风的路径极为多变，常常引起广泛的恐慌和应对准备的挑战。
Working in emergency medicine means facing unpredictable situations every day.
在急诊医学工作意味着每天都要面对不可预知的情况。
The ending of the movie was so unpredictable that it left the audience stunned.
电影的结局出乎意料，让观众震惊不已。
His next move in the game was utterly unpredictable; he was known for his strategic surprises.
他在游戏中的下一步行动完全无法预料，因为他以出其不意的策略闻名。
The behavior of subatomic particles is inherently unpredictable according to quantum mechanics.
根据量子力学，亚原子粒子的行为本质上是不可预测的。