Question: I'm looking for an antonym of the word *spoiled*.

The sense of *spoiled* I have in mind is a positive one: "I've become spoiled by these comfy shoes."

I'm looking for a word or short phrase to say: "I've become *antispoiled* by these horrible shoes and now any other pair would be comfortable."

The closest phrase that I'm aware of is *to have one's standards lowered*, which isn't quite the same thing and certainly isn't very pithy.

Answer: 
*Indurated*:3. [to inure; accustom: to indurate oneself to privation and suffering](http://dictionary.reference.com/browse/indurate). 

To be made *hardy*: [capable of enduring fatigue, hardship, exposure, etc.; sturdy; strong](http://dictionary.reference.com/browse/hardy) otherwise known as “hard as nails” (idiom)
How about *desperate*? 

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> "I've become desperate because of these horrible shoes and now any other pair would be comfortable."
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Or, even better:

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> "These horrible shoes have made me desperate and now any other pair would be comfortable."
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