Anhydrous – (of a substance) containing no water
The anti-hydrant protester is furious (anhydrous). He's made of a substance containing no water and wants all hydrants removed.
Examples of anhydrous in a sentence
Phosphate anhydrous is widely used in toothpaste.
Anhydrous ammonia is injected into soil on some farms.
The substance becomes anhydrous at about 300 degrees celsius.