What is a word for someone whose emotions are not hurt easily? [duplicate]

What is a word for someone whose emotions are not hurt easily? I'm looking for something more specific than 'robust' and 'stable'.


Solution 1:

For example:

"thick-skinned"
adjective
insensitive to criticism or insults.

Solution 2:

How about stoic? It tends to mean "unemotional", but it can certainly describe lack of emotional response to criticism, insults, etc.