chutzpah
1. [ noun ] (Yiddish) unbelievable gall; insolence; audacity
Synonyms: hutzpah chutzpa
Related terms: crust Yiddish
2. [ noun ] aggressive boldness or unmitigated effrontery
Synonyms: audacity hutzpa audaciousness
Examples:

"he had the audacity to question my decision"

Related terms: boldness presumption
Similar spelling:   chutzpa
  chutzpanik