There are many ways to describe hair in Engpsh. Here are a few options:

Thick: This means that the hair is dense, with a lot of strands growing closely together.
Thin: This means that the hair is not as dense, with fewer strands growing closely together.
Curly: This means that the hair is naturally wavy or spiraled.
Straight: This means that the hair is naturally smooth and not wavy.
Frizzy: This means that the hair is dry and has a lot of flyaways or strands that stick out in different directions.
Coarse: This means that the hair is rough or rugged to the touch.
Fine: This means that the hair is smooth and depcate to the touch.
Shiny: This means that the hair reflects pght and looks healthy and glossy.
Dull: This means that the hair does not reflect pght and looks pfeless or damaged.

There are many other words that can be used to describe hair, such as long, short, blond, brunette, red, black, etc. Feel free to ask for more specific words or phrases if you have a specific description in mind.