An exhibition titled “Unorthodox” sounds ambitious. An exhibition titled “Unorthodox” at the Jewish Museum sounds “provocative,” as curator Jens Hoffmann says in the accompanying catalogue—putting it mildly. So what kind of obscenely controversial works of religious art are on display at the Upper East Side mansion-cum-museum? Well, none really. Rather, Hoffmann, along with co-curators Kelly Taxter and Daniel S. Palmer, has put together a show of some 55 artists (rebels, radicals, mavericks, if one wants to get dramatic—just don’t call them “outsiders”), united by their challenge to mainstream orthodoxy of every stripe. It’s worth noting that in the mix, too, are a handful of trendy emerging artists, Zoe Paul, Brian Bellot, and Nick Payne among them. The Jewish connection here isn’t a directly religious one; rather the works exemplify the Jewish tradition of dialogue and critique of prevailing thought. With this foundation, “Unorthodox” juxtaposes artists from different decades, countries, and creeds, and like all truly great dialogues, it does so in ways that are profoundly generative.