suited

Compared meaning: right or appropriate for something (adjective).

比较义项：合适的、适当的（形容词）。

• fit

  Common in the fixed phrases 'fit for' and 'fit to' + verb, carrying a formal, judging tone about meeting a standard; less used than 'suitable' for everyday descriptions.

  常见于固定搭配「fit for」和「fit to + 动词」，语气较正式，带有是否达到某种标准的评判意味；在日常描述中不如 suitable 常用。

  He didn't think the report was fit to be sent to clients in its current state.

  他认为这份报告目前的状态还不适合发给客户。

• suitable

  The most common, neutral word for 'appropriate', typically followed by 'for' plus a purpose or audience; used across everyday and formal contexts to describe things or content.

  是表示「合适」最常用、最中性的词，后面常接「for」加用途或对象；广泛用于日常和正式语境，描述事物或内容是否合适。

  This film isn't suitable for young children because of the violence.

  这部电影因为有暴力情节，不适合小孩子看。

• suited 本词

  Usually combined with 'well' or 'ill' and followed by 'to' or 'for', describing how well someone's character, skills or qualities match a role or situation.

  常与「well」或「ill」连用，后接「to」或「for」，用来描述一个人的性格、能力与某个角色或情境是否契合。

  With her patience and warmth, she's perfectly suited to teaching young children.

  凭着她的耐心和温暖，她非常适合教小孩子。

Fit, suitable, and suited all mean 'appropriate'. Fit appears in phrases like 'fit for', with a formal tone. Suitable is the most common, neutral word, usually followed by 'for' plus a purpose. Suited combines with 'well' or 'ill', describing how someone's character matches a role.

这三个词在「合适、适当」这一意义上很接近，但语域和搭配不同：fit 常见于固定搭配「fit for」「fit to do」，语气较正式，带有是否达到某种标准的评判意味；suitable 是最常用、最中性的说法，常接「for」表示对象或用途；suited 常与「well」「ill」连用，侧重性格、能力与角色或情境之间的契合。这里不比较 fit 表示「健康的」或作动词表示「（尺寸）合身」的用法，也不比较 suited 表示「穿着西装的」这一较少见用法。