Not perfected, elaborated, or completed
Without a finish
His unfinished question lingered in the silence between them.
I don't want any unfinished business cropping up later.
I don't mean monsters are chasing me but I have a deadline or there's some unfinished business.
That's a dangling something—an unfinished sentence.
One more piece of unfinished business was put to rest when Dean arranged for two young friends of DeLeo to ferry Fred's rental car back to Scranton.