Lacking the ability to cut easily; not sharp.
Examples:
- "All these knives are dull."
Synonyms: blunt
Antonyms: sharp
Boring; not exciting or interesting.
Examples:
- "He sat through the dull lecture and barely stayed awake."
Synonyms: banal, beat, blah, bland, boring, cold, colourless, drab, dreich, drowsy, dull, dull as dishwater, flat, ho-hum, humdrum, insipid, lackluster, lame, languid, lifeless, longsome, monotonous, mundane, no fun at parties, plain, plodding, prosaic, prosy, pedantic, pedestrian, static, straightforward, snoozeworthy, soporific, tedious, uncool, wan, weaksauce, wooden, uninteresting, stodgy, vapid, vanilla
Not shiny; having a matte finish or no particular luster or brightness.
Examples:
- "Choose a dull finish to hide fingerprints."
- "a dull fire or lamp; a dull red or yellow; a dull mirror"
Synonyms: lackluster, matte, bland, colourless, dim, dingy, dull, faint, lackluster, leaden, muddy, sad, sober, uncolorful, unholiday, wan
Antonyms: bright
Not bright or intelligent; stupid; having slow understanding.
Synonyms: addlebrained, addlepated, airheaded, bee-brained, beefheaded, beef-witted, beetle-headed, birdbrained, blockheaded, Boeotian, boofheaded, boneheaded, brainless, bubbleheaded, buffle-headed, bullet-headed, chowderheaded, crackbrained, cretinous, chuckleheaded, dense, dented, dim, dim-bulb, dim-headed, dim-witted, doltish, dopey, dozy, drowsy, dull, dull-headed, dull-minded, dull-witted, dumb, dumber than a box of rocks, dunderheaded, empty-headed, fatheaded, feeble-minded, flea-brained, foolish, fuzzy-headed, fuzzy-minded, half-brained, half-witted, hammer-headed, idiotic, imbecilic, knuckleheaded, lamebrained, lowbrow, lumpish, lunkheaded, mentally challenged, mentally retarded, mindless, monosynaptic, moronic, muttonheaded, nitwitted, numbskulled, oafish, obtuse, peabrained, pratty, pudding-headed, purblind, quarter-witted, retarded, rockheaded, sharp as a bowling ball, sheep-headed, simple, slow, slow-witted, smooth-brained, stolid, stupid, thick, thickheaded, thick-skulled, thickwitted, unapprehensive, unclever, unintelligent, unsmart, vacant, vacuous, witless, wooden-headed, wool-headed, woolly-headed, woolly-minded, dumb as a bag of hammers, dumb as a box of rocks, dumb as a doorknob, dumb as an ox, dumb as a post, dumb as a sack of hammers, dumb as dirt, dumber than a rock, not the sharpest crayon in the box, not the sharpest knife in the drawer, not the sharpest tool in the shed, thick as a brick, thick as a plank, thick as champ, thick as mince, thick as two short planks, thick as a whale omelette, ass-brained, fuckwitted, shit-for-brains, thick as pig shit
Antonyms: brainless, dumb, foolish, idiotic, imbecile, insensible, lowbrow, mindless, stupid, unintelligent, witless
Sluggish, listless.
Synonyms: ponderous, slothful, lazy, bone-idle, idle, indolent, inert, lackadaisical, lither, slothful, work-shy, sluggish, swear, torpid, crawling, creeping, dreich, gastropodous, glacial, heavy-footed, inching, inert, labored, leaden, lead-footed, lethargic, low-speed, lumbering, plodding, pokey, ponderous, slothlike, slow, slow as a snail, slow as Christmas, slow as molasses, slow as molasses in January, slowfooted, sluggish, stately, steady, subglacial, sullen, tardigrade, tedious, testudineous, torpid, unspeedy
Bored, depressed, down.
Synonyms: atrabiliary, atrabilious, blitheless, blue, bummed out, chapfallen, cheerless, chopfallen, crestfallen, cut up, damp, dejected, depressed, despondent, disgruntled, disconsolate, disheartened, dismal, doleful, dolesome, down, down in the dumps, down in the mouth, downcast, downhearted, downsome, dull, elegiac, elegious, forlorn, gloomy, glum, grief-stricken, grieving, heavy-hearted, heartsore, heartsick, inconsolable, infelicitous, jawfallen, joyless, lachrymose, lamentful, low, low-spirited, lugubrious, lumpish, melancholic, melancholy, miserable, moody, mopey, morose, mournful, passionate, plaintive, querulous, sad, saddened, saturnine, shattered, solemn, sombre, sorrowful, sorrow-ridden, sorrowsome, spiritless, sullen, threnetic, threnetical, triste, tristful, uncheerful, uncheery, unconsolable, unhappy, unlively, wistful, woe, woebegone, woeful, wretched
Insensible; unfeeling.
Synonyms: emotionless, alexithymic, apathistical, clinical, dull, cold-blooded, cold-hearted, dead inside, dispassionate, emotionless, immovable, impassible, impassive, insensible, nonemotional, nonfeeling, nonpassionate, nonsentimental, stolid, unemotional, unfeeling, unmovable, unpassionate, unsentimental
Heavy; lifeless; inert.
Examples:
- "c. 1857', Henry Wadsworth Longfellow, Table-Talk
As turning the logs will make a dull fire burn, so changes of study a dull brain."
Synonyms: immobile, abeyant, at rest, cessant, dormant, dull, fallow, idle, inactive, inert, languid, latent, nonactive, quiescent, silent, sedent, sedentary, slow, suspended, torpid, unactive, unbusy, unemployed, unoccupied, at rest, dull, impassive, inanimate, lifeless, motionless, sedent, sedentary, stationary, still, stock-still, torpid, unmoved, unmoving
(of pain etc) Not intense; felt indistinctly or only slightly.
Examples:
- "Pressing on the bruise produces a dull pain."
Not clear, muffled. (of a noise or sound)