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Use "duller" in a sentence
"It was competent and workmanlike but its shopping list of initiatives recalled his duller budgets."
"Then there's a kind of duller brilliant writing that you get in Battlestar, where the overarching idea, the plot, the sheer weight and momentum of the story is the thing that excites me."
"It's entirely understandable and even maybe adaptive if Far Right Wingers (a la The Bell Curve) adopt arrogant airs (arrogance seems to be a typical dominance display) if their daily routine demands dealing with "duller" sorts."