Word: stodgiest

boring, dull, uninteresting, dreary, turgid, tedious, dry, unimaginative, uninspired, unexciting, unoriginal, monotonous, humdrum, prosaic, staid, heavy going, deadly, square, solid, substantial, filling, hearty, heavy, starchy, indigestible, stuffy, stick-in-the-mud, mossy, moss-grown, fogyish

adjective

• dull and uninspired.
• (of food) heavy, filling, and high in carbohydrates.