擅自 (shàn zì) — without permission; without authorization; arbitrarily

擅自 (shànzì) means doing something 'without authorization' — it implies overstepping one's authority. Stronger than 私自 (which just means 'in private / secretly') and more formal than 任意 ('at one's own will').

adverb
without permissionwithout authorizationarbitrarily

예문

  • 擅自
    Tā shàn zì lí kāi le gōng sī, méi yǒu gào sù rèn hé rén.
    He left the company without permission and didn't tell anyone.
  • 擅自
    Qǐng bú yào shàn zì zuò rèn hé jué dìng, xiān gēn tuán duì tǎo lùn.
    Please don't make any decisions arbitrarily; discuss with the team first.
  • 擅自
    Tā shàn zì xiū gǎi le wén jiàn, dǎo zhì xiàng mù chū xiàn wèn tí.
    He modified the document without authorization, causing problems for the project.

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