Answer:
Difícil OR Duro
Explanation:
there are two translations for hard depending on which way it is going to be used. Example:
El examen está difícil.
The test is hard.
Here it is used to describe how some is hard in difficulty.
or
El piso es duro.
The floor is hard.
Here is is used to describe how something feels hard.
hope this helps
You want to translate that or whats your queastion