e ‧ gre ‧ gious /ɪˈɡriːdʒəs/ BrE AmE adjective formal
[ Date: 1500-1600 ; Language: Latin ; Origin: egregius 'unusual' , from grex 'group of animals' ]
an egregious mistake, failure, problem etc is extremely bad and noticeable
—egregiously adverb
e ‧ gre ‧ gious /ɪˈɡriːdʒəs/ BrE AmE adjective formal
[ Date: 1500-1600 ; Language: Latin ; Origin: egregius 'unusual' , from grex 'group of animals' ]
an egregious mistake, failure, problem etc is extremely bad and noticeable
—egregiously adverb
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012