prosaic

He has a prosaic writing style.他的写作风格很平庸。

the prosaic life of a hardworking farmer辛勤劳作的农民的平淡生活

She believes the noises are made by ghosts, but I think there's a more prosaic explanation.她认为这些声音是鬼魂发出的，但我觉得还有比这更无聊的解释。