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Something that is absurdly simple or easy and requires little thought: “Making pumpkin pie can be a no-brainer if you use frozen pastry and canned filling.”
: Alden Essex is currently the undisputed king of no-brainer novels/ Lansing, with the help of no-brainer sequels such as Wayne's World 2 and Addams Family Values, has the studio back on tracknoun
Something very simple, requiring no intelligence: The question of which CAD program to buy is a nobrainer; Autodesk's AutoCAD dominates the market/ Passing it seemed like a no-brainer, but it failed (mid1980s+)