If you say that something is ~, you are very pleased about it or think that it is very good. (BRIT INFORMAL)
What a ~ idea!
= wonderful, great
ADJ
If you say that something is ~, you are very pleased about it or think that it is very good. (BRIT INFORMAL)
What a ~ idea!
= wonderful, great
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012