troubled

Compared meaning: feeling concerned or nervous about something (adjective).

比较义项：因某事而感到担心、不安（形容词）。

• worried

  The most common, neutral word for feeling concern about someone or something specific; used in everyday speech about ordinary problems, big or small.

  最常见、中性的词，表示对某人或某事感到担心；用于日常口语，大小问题都能用。

  Mom was worried when I didn't call to say I got home safely.

  妈妈担心，因为我到家后没有打电话报平安。

• troubled 本词

  Suggests deeper or more prolonged distress, often caused by something serious, confusing or morally difficult; more formal and literary than worried.

  表示更深或更持久的烦恼，往往由严重、令人困惑或道德上棘手的事情引起；比worried更正式、更书面化。

  He grew troubled after learning his business partner had lied to him for months.

  得知生意伙伴欺骗了他好几个月后，他变得烦恼不已。

• anxious

  Emphasizes nervous anticipation about a future or uncertain event, often with physical unease like inability to relax or sleep.

  强调对未来或不确定事件的紧张期待，常伴有难以放松、难以入睡等身体上的不安。

  She felt anxious for days before the results of her medical test came back.

  在体检结果出来之前，她焦虑了好几天。

• uneasy

  Describes a vague, instinctive feeling that something is wrong, often without a clear or identifiable cause.

  表示一种模糊的、本能的不对劲的感觉，往往说不出明确的原因。

  He felt uneasy the moment he stepped into the empty house, though nothing seemed wrong.

  他一踏进那栋空房子就感到不安，尽管看起来一切正常。

All four describe feeling concerned. Worried is the most common, neutral word for any concern. Troubled suggests deeper, more formal distress, often from something serious. Anxious stresses nervous anticipation about the future, often with unease. Uneasy is a vague, instinctive feeling that something is wrong.

这四个词在表示因某事而感到担心、不安时意义相近，但语气和使用场合有差异：worried最口语化，troubled程度更深、更正式，anxious强调对未来的紧张期待，uneasy则是说不出明确原因的隐隐不安。这里不比较troubled表示“问题重重”（如troubled childhood）的用法，也不比较anxious表示“急切渴望”（如anxious to help）的用法。

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

  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 本词

  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。