You can describe something as ~ if it happens, by chance, to be very successful or pleasant.
Their success is the result of a ~ combination of circumstances.
= lucky
ADJ
You can describe something as ~ if it happens, by chance, to be very successful or pleasant.
Their success is the result of a ~ combination of circumstances.
= lucky
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012