outdumb
verbEtymology From out- + dumb, by analogy with outsmart.
1
To surpass in dumbness; to be dumber than.
- Borowitz grabs readers by the ear and walks them through the stages of ignorance, […] to celebration (starring Donald J. Trump and, as Borowitz puts it, “wannabes like Ted Cruz and Ron DeSantis — who, despite being graduates of our nation’s finest universities, strenuously try to outdumb him).”2022 October 6, Elisabeth Egan, “Ignoramuses Are Gaining Ground, Andy Borowitz Warns”, in The New York Times: