I recently encountered this word I’d not seen or heard before, so I looked it up.
According to the folks at WorldWideWords:
“So what is the opposite of Serendip, a southern land of spice and warmth, lush greenery and hummingbirds, seawashed, sunbasted? Think of another world in the far north, barren, icebound, cold, a world of flint and stone. Call it Zembla. Ergo: zemblanity, the opposite of serendipity, the faculty of making unhappy, unlucky and expected discoveries by design. Serendipity and zemblanity: the twin poles of the axis around which we revolve…
Zemblanity hasn’t achieved mainstream status, though Mr Justice Michael Peart used it in a legal judgment in Ireland in 2012 and it has been borrowed as the title of a bit of madcap physical theatre, which was performed, for example, at the 2009 Edinburgh Festival Fringe.”