Adjective for someone who doesn't react when someone insults them? [closed]
Solution 1:
I prefer unflappable, which means in the face of provocation one is usually unfazed.
Solution 2:
How about stoic?
1 capitalized : of, relating to, or resembling the Stoics or their doctrines
2 : not affected by or showing passion or feeling; especially: firmly restraining response to pain or distress
From Merriam-Webster Online.