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Australian manual of scientific style Start communicating effectively
Commas and adjectives
Adjectives offer different perspectives on whatever they describe:
- evaluative – silly, splendid, unmanageable
- descriptive – blue, large, joyful
- categorial – Greek, wooden.
See also Noun phrases
When more than 1 adjective is used to describe a noun, they usually appear in the following order: evaluative, descriptive, categorial.
If the adjectives bring these different perspectives, they do not need a comma between them:
splendid blue Greek vase trendy old lady jazzy red sports car
However, if more than 1 adjective with a single perspective is used, they do need a comma:
long, dark, narrow path tall, well-dressed man long, hot, smoky summer
One way to determine whether you need a comma is to test whether you could say the phrase with and between the adjectives. If you can, you need commas:
You would not say:
a splendid and blue and Greek vase [so you do not need commas]
You could say:
a long and dark and narrow path [so you do need commas]