General dryness:
* Arid
* Barren
* Dehydrated
* Desiccated
* Dusty
* Parched
* Powdery
* Thirsty
* Waterless
Describing textures:
* Crisp
* Crackly
* Rough
* Brittle
* Flaky
* Sandy
* Coarse
* Hard
* Stale
Describing feelings or situations:
* Aloof
* Cold
* Distant
* Emotionless
* Formal
* Impersonal
* Matter-of-fact
* Restrained
* Unfeeling
Describing specific types of dryness:
* Wine: Oaky, tannic, full-bodied
* Humor: Dry, witty, sardonic
* Weather: Sunny, clear, crisp, cold
* Hair: Frizz-free, sleek, manageable
* Skin: Chapped, flaky, itchy
Opposite of dry:
* Wet
* Moist
* Damp
* Humid
* Juicy
* Soggy
Remember to choose the best adjective based on the specific context you are writing about.