upset

Compared meaning: feeling uneasy or upset about something (adjective).

比较义项：因担心某事或发生了不愉快的事而感到不安（形容词）。

• worried

  The plain, everyday word for feeling concern about a problem or an uncertain outcome; neutral in tone, it lacks upset's sadness, troubled's gravity, and anxious's nervous intensity.

  worried 是最普通、最日常的用词，表示对某个问题或不确定的结果感到担心；语气中性，没有 upset 那种伤心情绪，也没有 troubled 那种严重感，更没有 anxious 那种紧张强度。

  Don't be worried about the exam, you still have two weeks to prepare.

  别为考试 worried，你还有两周时间准备。

• upset 本词

  Describes strong unhappiness, hurt or disappointment caused by something unpleasant that has already happened; more emotional and personal than worried, and less about future risk than anxious.

  upset 表示因已经发生的不愉快的事而感到强烈的伤心、难过或失望；比 worried 更偏向情绪上的伤痛和个人感受，也不像 anxious 那样着重对未来风险的担忧。

  She was so upset when she found out her flight had been cancelled.

  她发现自己的航班被取消时非常 upset。

• troubled

  Suggests a deeper, more serious and often lingering unease about a difficult situation; more formal and literary than worried or upset, and usually describes appearance, e.g. 'looked troubled'.

  troubled 表示对某个困难处境感到更深、更严重且往往挥之不去的不安；比 worried 或 upset 更正式、更书面化，通常用来描写外表，例如“看起来 troubled”。

  He seemed troubled by memories of the accident and could not sleep.

  他似乎因为那场事故的记忆而感到 troubled，久久无法入睡。

• anxious

  Combines worry with nervousness about a future event, often with physical restlessness; typically followed by 'about' or 'to', and stronger and more forward-looking than worried.

  anxious 把担心和紧张结合在一起，通常是对未来某件事的担忧，常伴有坐立不安等身体反应；后面常接 about 或 to，语气比 worried 更强、更指向未来。

  He felt anxious before his job interview and couldn't stop pacing.

  面试前他感到十分 anxious，不停地来回踱步。

All four words describe feeling uneasy about a problem. Worried is the plain, everyday word. Upset shows strong unhappiness after something bad happens. Troubled suggests deeper, more serious, lasting unease. Anxious adds nervousness about the future. Upset's "stomach" and troubled's "unstable situation" senses are excluded.

这四个词都表示因担心某事或发生了不愉快的事而感到不安，但侧重点和语气强弱不同：worried 最日常中性，upset 强调伤心失望，troubled 语气更重更正式，anxious 强调紧张和对未来的担忧。这里不比较 upset 表示“（肠胃等）不适”或“打翻”的意思，也不比较 troubled 表示“（局势）动荡的”的意思。

Compared meaning: to knock something over or turn it upside down (verb).

比较义项：把某物打翻／推翻、使其倒扣或颠倒（动词）。

• upset 本词

  Informal and everyday; used for small or moderate objects knocked over often by accident, e.g. a cup or a bucket; rarely used for abstract things like decisions.

  较为口语、日常；多用于不小心碰翻的小件或中等大小的物品，例如杯子或水桶；很少用于抽象事物（如决定）。

  The cat jumped onto the table and upset a vase of flowers.

  那只猫跳上桌子，打翻了一瓶花。

• overturn

  More formal; used for larger or heavier objects turned upside down with force, and also extends to abstract things like rulings or decisions.

  语气更正式；多用于较大或较重的物体被用力弄得颠倒，也可引申用于判决、决定等抽象事物。

  Protesters tried to overturn the police car during the riot.

  抗议者在骚乱中试图把那辆警车掀翻。

Upset and overturn both mean to knock something over. Upset is everyday, for small objects knocked over by accident, like a cup. Overturn is formal, for larger objects turned over with force, or for things like a ruling. Not covered: upset meaning to worry someone.

两词都指把某物弄得翻倒或颠倒，但 upset 多指日常小物件被不小心碰翻，程度较轻、较随意；overturn 语气更正式，常用于较大、较重的物体被用力弄翻，也可指抽象事物（如判决、决定）被推翻。这里不比较 upset 的“使心烦、使不安”这一常见义项。