Actually, conceivable was a good clue, but the discussion seemed to be going inconceivable only…get it…bride-conceivable? I thought of that, but was thinking only the non was supposed to fit. That goes to show you, dram covers both possibilities!
Yeah, I was only thinking of Vizzini’s famous “Inconceivable!” when I made that clue. It’s cool now that we have the storyform, we can see that the narrative structure is part of what makes that sequence so funny and memorable!