"John drives a big red car" is correct. When we use more than one adjective they should be used in the correct order. Adjective order is not entirely fixed but the general sequence is: -- Determiner - Opinion - Size - Age - Shape - Color - Origin - Material - Noun Determiners are words such as a, an , the, this, that. These words are also kinds of adjectives. For example: - a famous, old painting - a big, round table - an American, cotton shirt Adjectives of opinion come before adjectives of fact, for example: - a beautiful, white flower. "A white, beautiful flower" sounds unusual. With two or more adjectives commas are optional. For example: - "A long, dark tunnel" or "A long dark tunnel" are both acceptable. With two or more color adjectives use and. For example: - She's got a black and white kitten. Adjectives other than colors don't use and. For example: - She's got a little, black kitten. "She's got a little and black kitten" is incorrect.

"John drives a big, red car " is correct The adj word that describe size should be put before the word that describe the color ! Right ?

The two sentence are both correct,I think. one is emphasis big and another is emphasis red. waiting for the correct answer and reason.

Hello Richard, "a, an" are not adjectives but indefinite articles. "the" is definite article. " this and that" are demonstrative adjectives.