Does anyone know why you're unable to use multiple varargs as parameters in a constructor in Kotlin and if there might be a possible workaround?

It would often be ambiguous.

you could use currying maybe?

currying? As in passing higher-order functions in?

yeah, make your constructor accept a HOF with varargs (not sure if that's possible in kotlin, I've never tried it), and call the HOF in the constructor?

Hmmmm, for now, the workaround I found involves taking advantage of TornadoFX dependency injection by creating the injector in a Controller - but this could but another item to look at

if you could post a larger code sample we might be able to help a little better.