Adjective Order
Cumulative adjectives follow the OSASCOMP order and do not need commas: "a beautiful Italian leather sofa". Coordinate adjectives are of equal importance (often both opinions or descriptions) and require commas or "and": "a hot, humid day" or "a hot and humid day". To test: if you can reverse the adjectives and the sentence still sounds natural, they are coordinate.
Cumulative adjectives follow the OSASCOMP order and do not need commas: "a beautiful Italian leather sofa". Coordinate adjectives are of equal importance (often both opinions or descriptions) and require commas or "and": "a hot, humid day" or "a hot and humid day". To test: if you can reverse the adjectives and the sentence still sounds natural, they are coordinate.
Practice
Which sentence needs a comma between the adjectives?
It was a warmsummer evening.
Put the words in the correct order: