acupunctuation, acupuncture, arid, bore, boresome, broach, dead, drab, dreary, drill hole, drudging, dry, dull, empiercement, exhausting, fatiguing, fixing, flat, goring, gray, humdrum, impalement, irksome, lancing, long-drawn-out, monotonous, penetration, perforation, piercing, pricking, prolix, punching, puncture, puncturing, repetitious, repetitive, same, samely, skewering, soporific, stale, stupefyingly boring
, stuporific, tedious, terebration, tired, tiresome, tiring, transfixation, transfixion, transforation, trepanning, trephining, unending, unexciting, uninteresting, unrelieved, weariful, wearing, wearisome, wearying, wordy, yawny
frequency, oftness, oftenness, commonness, repetition, normality, example (conformity), routine, custom (habit), regularity, uniformity, constancy, clock-work precision, punctuality, even tenor, system, routine, formula, rule, keynote, standard, model, precedent, conformity, frequent, many times, not rare, thickcoming, incessant, perpetual, continual, steady, constant, thick, uniform, repeated, customary, (habit), regular (normal), according to rule, common, everyday, usual, ordinary, familiar, old-hat, boring
, well-known, trivial, often, oft, ofttimes, oftentimes, frequently, repeatedly, unseldom, not unfrequently, in quick succession, in rapid succession, many a time and oft, daily, hourly, every day, every hour, every moment, perpetually, continually, constantly, incessantly, without ceasing, at all times, daily and hourly, night and day, day and night, day after day, morning noon and night, ever anon, invariably (habit), most often, commonly, sometimes, occasionally, at times, now and then, from time to time, there being times when, toties quoties, often enough, when the mood strikes, again and again.
dullness, heaviness, flatness, infestivity &c, stupidity want of originality, dearth of ideas, prose, matter of fact, heavy book, conte a dormir debout, platitude, dull, dull as ditch water, unentertaining, uninteresting, flat, dry as dust, unfunny, unlively, logy, unimaginative, insulse, dry as dust, prosy, prosing, prosaic, matter of fact, commonplace, pedestrian, pointless, weary stale flat and unprofitable, stupid, slow, flat, insipid, vapid, humdrum, monotonous, melancholic, stolid plodding, boring
, tiresome, tedious, davus sum non Aedipus, deadly dull and boring