Synonyms for Dull:
rounded, unpointed, pointless, obtuse, edgeless, unsharpened, blunt.
insipid, tedious, dry, mundane, dreary, prosaic, tiresome, well-worn, depressing, monotonous, humdrum, boring, uninteresting, commonplace, Weariful, wearisome.
•boring, uninteresting (adjective)
dismal, plain, unimaginative, worn-out, insipid, pointless, uninspiring, commonplace, arid, ordinary, common, abused, soporific, archaic, humdrum, out-of-date, stale, hackneyed, tired, hoary, tiresome, repetitious, Familiar, trite, dreary, stock, prolix, vapid, repetitive, prosy, dry.
colorless, bleached, lusterless, achromatic, hueless, lackluster, neutral, toneless, faded, pale, white.
dysphoric, spiritless, heavy-hearted, tristful, melancholic.
besotted, thick-witted, soporific, sluggish, sleepy, dim, bovine, lethargic, slow, dense, blunt, backward, cloddish, boorish, comatose, benumbed, ponderous, loutish, doltish, apathetic, drowsy, stupefied, obtuse.
drab, neutral-tint, salt-and-pepper, mole-gray, gun metal, mousy, gray, smoky, lead-gray, iron-gray, dreary, dapple-gray, grizzled, gloomy, pearl-gray, dingy, battleship-gray, somber, pearly, ashen, silvery, leaden, taupe.
depressed, insensible, lifeless, spiritless, placid, usual, apathetic, listless, regular, languid, quiet, lumpy, inactive, monotonous, stagnant, jejune, torpid, colorless, dead, routine, unresponsive, flat, prosaic, still, accustomed, callous, unexciting, even, heavy.
languid, lackadaisical, indolent, leisurely, languorous, lifeless, drooping, phlegmatic, apathetic, unhurried, dopey, drugged, lumpish, lethargic, lazy, tired, torpid, insensible, slow, slothful, sluggish, benumbed, leaden, listless.
muffled, Damped, dead, deadened, flat, silenced, mute, non-resonant.
•not sharp (adjective)
blunted, square, unpointed, unsharpened, blunt, round, edgeless, turned.
deadened, insensitive, stupefied, desensitized, anesthetized, numb, dazed, narcotized, drugged.
unperceptive, senseless, soporific, dead, narcotic, insentient, trance-like, callous, swooning, aloof, insensible, oblivious, numb, unfeeling, faint, blacked out, insensitive, comatose, unconscious, anesthetized.
brainless, imbecilic, indolent, boring, dim, besotted, stolid, low, doltish, dense, backward, shallow, vacuous, simple-minded, tedious, insensate, witless, simple, ignorant, addled, obtuse, sluggish, slow, scatterbrained, dumb, moronic, Feeble-minded, wearisome.
n.billow, cumulus, cirrocumulus, column, cloud, bank, cirrus, cirrostratus, low, cumulonimbus. stuporous, nonprofit, unprofitable, awareness, uneconomical, unhealthy, untapped, not-for-profit, uneconomic, loss-making, underfunded. block out, drown, blind, cut out, uncomprehending, quieten, see. anesthetic, bloodless, feelings, weak, attitude. down, off, increase. drear, Weariful, excite. earthbound, aseptic, uninspired, sterile, flavorless, matter of fact. colors. •dull (noun)
deadening, muffled, lusterless, dreary, muffle, mute, desiccate, nonresonant, grey, slow, boring, heavy, leaden, unsharpened, dim, dumb, lackluster, matt, damp, lustreless, matte, arid, dense, bovine, humdrum, obtuse, wearisome, inactive, thudding, gray, edgeless, tone down, blunted, dampen, mat, monotonous, muted, benumb, thumping, insensitive, ho-hum, blunt, dulled, unreverberant, Irksome, numb, pall, softened, sluggish, cloudy, drab, matted, deadened, tedious, unsaturated, lacklustre, desiccated, soft, uninteresting, flat, tiresome.
dreariness, drabness, Silveriness, mousiness, grayness, dapple-grayness, dinginess, pearliness, gloominess, dullness, Smokiness, leadenness, somberness, ashiness, iron-grayness.
bore, fatigue, annoy, weary, tranquilize, sedate, tire.
cripple, hobble, stupefy, vitiate, hamstring, impair, tamper, cramp, benumb, handicap, botch, abrogate, paralyze, anesthetize, hamper, hinder, prostrate, disarm, scotch, enfeeble, screw up, lame, weaken, stun, deaden, sap, incapacitate, undermine, neutralize, invalidate, disable.
daze, desensitize, narcotize, drug.
muffle, silence, still, turn down, quiet.
deadly, barbed, left-handed, matter of fact, half-witted, shallow, anesthetic, Two-edged, earthbound, double-edged, ordinary, uninspired, hollow, pedestrian, stale. flavorless, insensate, barren, Weak-minded, wan, razor-sharp, unhealthy. cloud, drown, bloodless, wooden, weak, murky, sterile. bass. off. blind. •barren
•in low spirits
melancholy, downcast, unhappy, depressed, dejected, spiritless, blue, dispirited, melancholic, down, tristful, wistful, heavy-hearted, low, sad, desolate, dysphoric, downhearted.