To his fellow prospectors he was known as "Slim," the worst-tempered and most restless of all their company.
The seedy Pickerbaugh domain was enchanted; the tangled grass was a garden of roses, the ragged grape-arbor a shrine to Diana, the old hammock turned to fringed cloth of silver, the bad-tempered and sputtering lawn-sprinkler a fountain, and over all the world was the proper witchery of moonstruck love.
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.