arid, boring, colorless, drab, dreary, drudging, dry, dull, dusty, flat, heavy, ho-hum, humdrum, jading, jejune, leaden, monochromatic, monotonous, numbing, old, pedestrian, ponderous, slow, stale, stodgy, stuffy, stupid, tame, tedious, tiresome, tiring, uninteresting, wearisome, weary, wearying

aseptic, barren, blah, dullish, pleasureless, prosaic, prosy, soggy, spiritlessblank, earthbound, gray(also grey), inanimate, pallid, pedantic, sterile, suspenseless, undramatic, uneventful, unexciting, unimaginative, uninspiring, unnewsworthy, unrewarding, unsensational, unspectacularannoying, bothersome, irksome, irritatinglongsomepallingdraining, enervating, exhausting, fatiguing, wearingdebilitating, enfeeblingdemoralizing, discouraging, disheartening, dispiritingcommon, commonplace, ordinary, tepid, unexceptional, unsurprising, vapidcumbersome, lumbering, plodding, poky(or pokey)