Not surprising — exactly what you would expect, given what you already know. If you hear that a restaurant with terrible food has closed, that news is unsurprising. Two things to feel here. First, it is a mild, slightly formal word, more common in writing and in careful speech than in chat; in everyday talk people just say "that's not surprising" or "no wonder". Second, and more useful: it very often carries a small dry judgement. When a writer says "it is unsurprising that the plan failed", they usually mean the plan was obviously going to fail and somebody should have known. So the word can quietly criticise while sounding neutral — that is why journalists and academics like it. Common shapes: "it is unsurprising that...", "an unsurprising result", "hardly unsurprising" (careful — people do write this, but it is usually a mistake for "hardly surprising"). A related pair worth keeping straight: "unsurprising" describes the event or news; "unsurprised" describes the person. The news was unsurprising; she was unsurprised.