Definition of "ploddingly"

His stance as being against the world of finance and his proposal of a 75% tax on incomes over €1m (£817,000) was approved by a majority in polls. He was convinced that his more measured, if ploddingly serious, style would win out with an electorate tired of Sarkozy's bling and frenetic policy initiatives.

2012 April 23, Angelique Chrisafis, “François Hollande on top but far right scores record result in French election”, in the Guardian‎

“The Intruders,” which seems like such a ploddingly literal-minded title for a book that begins with a home invasion, turns out to signal a sci-fi horrific strain, one that guarantees puzzling questions about the characters’ true identities and motives.

2007 August 17, Janet Maslin, “Can’t Tell a Book (Kapow!) by Its Cover”, in New York Times‎