[user_7832]

In that context, would you say being boring/interesting is a fundamental aspect of a person or a temporary state (like emotions)? Because if antidepressants (or alcohol etc) can make one less/not depressed or turn a sober person into someone “fun”, was the person boring or were they just in a boring state of mind (whatever that may mean)?

[s1artibartfast]

I don’t think there is much of a meaningful distinction to be made.

Someone may be boring within a situational context, but that context may persist throughout someone’s entire life.

Most people have some contexts within which they are engaged or exciting, and some where they are not.