Is it correct to say "inter- disciplinary/national" instead of "interdisciplinary and international"?

I'm trying to be more concise with my words. Does writing "inter- disciplinary/national" to describe to my educational background make sense? If not, what's a good alternative?

First off, to follow a hyphen with a space where it's supposed to be joined to a word is just wrong.

That said, your proposed use is not easy to make sense of because, while inter-disciplinary might be hyphenated due to the word's complexity, international is not.

What you are doing is juxtaposing inter-disciplinary with national, not international.

You might get away with explicitly indicating that national is intended as a suffix by using a hyphen with that word: inter-disciplinary/-national; but it's clunky and the diverse nature of the education is far better expressed by using both interdisciplinary and international in full.