Comment by hx8

Interdisciplinary is a broad umbrella term that most people fall under to some degree. The benefit of focusing on a primary discipline is that there are well worn career paths to follow. I think the best approach is to brand yourself to one or two disciplines, and look for collaboration opportunities with other disciplines. Study them for enrichment and inspiration. Have friends and colleagues outside of your discipline.

If someone says they are "interdisciplinary" it provides little information about what they actually study and are good at. If someone says they have a Masters in Philosophy with a focus on Metaphysics I have enough information about their background to ask questions they might provide insightful comments on.