List of humdrum synonyms and humdrum related words.
alliterating, alliteration, alliterative, assonance, assonant, banal, banausic, belabored, blah, bore, boring, broken record, broken-record, buttonholer, chanting, chime, chiming, cliche-ridden, common, commonplace, crashing bore, dim, dingdong, drab, drag, drearisome, dreary, drip, drone, dry, dryasdust, dull, dusty, everlasting, flat, flat tire, frightful bore, gray, harping, headache, insipid, invariability, invariable, irk, irksomeness, jejune, jingle, jingle-jangle, jog-trot, labored, long-winded, matter-of-fact, monotone, monotonous, monotonousness, monotony, mundane, near rhyme, nuisance, ordinary, pedestrian, pest, pill, pitter-patter, plain, plodding, poetryless, prolix, prosaic, proser, prosing, prosy, repeated sounds, repetitious, repetitiousness, repetitive, repetitiveness, rhyme, rhymed, rhyming, routine, same, sameliness, samely, sameness, singsong, slant rhyme, stale repetition, stodgy, tedious, tedium, the beaten track, the daily round, the round, the squirrel cage, the treadmill, the weary round, tiresome, treadmill, trot, twaddler, unchanging, undeviation, undiversified, unembellished, uneventful, unexciting, unidealistic, unimaginative, unimpassioned, uninteresting, unnecessary repetition, unpoetic, unrelieved, unromantic, unvariation, unvaried, unvarying, vapid, wearisome, wearisome sameness, wet blanket