I have this sentence as part of an abstract
Verification of space weather forecasts presents some unique challenges compared with other types of forecasts.
I go on to detail briefly what those challenges are. Now, these aspects aren't, in truth, entirely unique to this area, but are still much more of a factor than in other areas. I am trying to succinctly replace 'unique' with something more suitable.
I have toyed with 'peculiar' or 'idiosyncratic' but neither really appeals. 'Particular' might fit but I'm still not too happy with that.
Unique works because in the context because I think it also conveys a sense of these challenges being interesting, which doesn't come across so much with the other words mentioned.
Best Answer
Maybe novel captures some of the meaning you're trying to convey? It suggests something out of the ordinary and interesting.