The world limned while technically meaning highlighted, tends only to be used when referring to drawings, either in paint or in words and images. It’s not used as a synonym for highlighted, in the way that you have here.

Inchoate means unfinished, or unformed. Something which you wouldn’t associate as an adjective with “roar” since a roar tends to be primal, monosyllabic, gutteral. You could have an inchoate (unfinished) chant, for example “What do we want? Eh… we’re not sure. When do we want it? Whenever you get back to us.” But a roar? Probably not.

Thanks for the comments! Always open to constructive criticism – hence the small changes! LOL