Is it insult if you call someone barbarian?
Not to me. Why do you want to call them names?
I personally do not know anyone who would be offended by it. Also depends on how you say it.
'Barbarian' is a pejorative term for an uncivilized, uncultured person, either in a general reference to a member of a nation or ethnos perceived as having an inferior level of civilization, or in an individual reference to a brutal, cruel, insensitive person whose behaviour is unacceptable in the society of the speaker. While the latter sense is always pejorative, the former one has not invariably been so, as described below.
Were you feeling kinda primal when you said it to them? Cover you insensitivity with the sources below...
Depends. I would consider it a compliment, but then I read a book called 'the Barbarian Way' see the link below.
Uh, yeah. Of course it is! Thats like asking if its mean to call someone a moron.