burglarious UK /bɜːˈɡlɛəɹi.əs/US /bɝˈɡlɛɹi.əs/ adjective1 •Being or resembling a burglarHe felt what a great advantage it was to be forewarned of the impending danger, since being forewarned was forearmed, as with the help of the police he could prepare for his burglarious visitors. — 1872 formsmore burglarious · most burglarious