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The old grammar rule we all obey without realising | The Guardian
The rule is that multiple adjectives are always ranked accordingly: opinion, size, age, shape, colour, origin, material, purpose. Unlike many laws of grammar or syntax, this one is virtually inviolable, even in informal speech. You simply can’t say My Greek Fat Big Wedding, or leather walking brown boots. And yet until last week, I had no idea such a rule existed.
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An O mark, known as marujirushi (丸印) or maru (丸) in Japan and gongpyo (공표(空標), ball mark) in Korea, is the name of the symbol "◯", a circle or used to represent affirmation in East Asia, similar to its Western equivalent of the checkmark ("✓"). Its opposite is the X mark ("✗" or "×").
The big bad wolf would like a word
Aside from ablaut reduplication, you could argue that bad is less of an opinion and more of an objective fact. Maybe falling under purpose, like his purpose is to do bad?
There's a competing vowel-ordering rule for consecutive short words, called ablaut reduplication, which can override the adjective order.