專橫跋扈 [专横－－]

Jyutping zyun1 waang4 bat6 wu6
Pinyin zhuān hèng bá hù

Definitions (CC-CANTO)
  1. Imperious; unreasonable, ridiculous
Definitions (Wiktionary)
  1. phrase, idiomatic
    imperious and arbitrary; domineering and unreasonable