His wife became more and more querulous and ill-tempered, but the attitude Ivan Ilych had adopted towards his home life rendered him almost impervious to her grumbling.
There are no more uses of "tempered" in the book.
Show samples from other sources
If you had only given me some hint, if you had only broken your word with me a couple of times, if you had been bad-tempered or impatient with me—if you had been a lesser man, maybe I could have taken what I saw you doing.
Harper Lee -- Go Set a Watchman
For the rest of the day, I’m short-tempered and distracted.