aggravating, annoying, bland, boresome, boring, bothering, bothersome, burdensome, common, commonplace, difficult, disagreeable, disturbing, draining, drudging, dull, exasperating, exhausting, fatiguesome, fatiguing, flat, galling, grueling, harassing, hard, humdrum, hypnotic, importunate, importune, insipid, irking, irksome, irritating, jading, killing, matter-of-fact, monotonous, mundane, onerous, oppressive, ordinary, pedestrian, pesky, pestering, pestiferous, pestilent, pestilential, plaguesome, plaguey, plaguing, plain, poetryless, prosaic, prosing, prosy, provoking, punishing, soporific, straining, stressful, stupefyingly boring, stuporific, teasing, tedious, tiring, toilsome, tormenting, troublesome, troubling, trying, unembellished, unidealistic, unimaginative, unimpassioned, uninteresting, unpleasant, unpoetic, unromantic, vapid, vexatious, vexing, weariful, wearing, wearisome, wearying, worrisome, worrying, yawny