* Inure can mean to become accustomed to something unpleasant. In this case, the antonym would be sensitize, make sensitive, or make vulnerable.
* Inure can also mean to harden or toughen. In this context, the antonym would be soften, weaken, or make susceptible.
Examples:
* Inure (meaning to become accustomed): "He had become inured to the cold weather."
* Antonym: "The new medication sensitized her to sunlight."
* Inure (meaning to harden): "The years of hardship had inured him to pain."
* Antonym: "The illness softened his once-strong muscles."
It's important to consider the specific meaning of "inure" in a sentence to determine the most appropriate antonym.