專擅 [专－]

Jyutping zyun1 sin6
Pinyin zhuān shàn

Definitions (CC-CEDICT)
  1. without authorization
  2. to act on one's own initiative
Definitions (Wiktionary)
  1. verb
    to make an arbitrary decision; to act arbitrarily
  2. verb
    to usurp authority
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）