Duller

Synonyms for "duller" (1133 found)

Ranked by relevance and common usage.

Closest matches (227)

lackluster blunt blunted bovine deadened dense dreary edgeless insensitive leaden monotonous muffle numb sluggish softened subdued unsharpened abate abeyant abrupt

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achromatic achromatize achromic acier affectless allay alleviate aloof anemic anesthetic anesthetize anesthetized apathetic appease arctic arid ascetic ashen ashy asleep assuage asthenic attemper attenuate austere autistic backward bad baffle bald banausic bank the fire bare barren bate bated becloud bedaze bedim beef-witted befog benumb benumbed besot betwixt and between blah blanch blank blase bleach blear blear-witted bled white blind blockish bloodless blue bluff blunt-edged blunt-ended blunt-pointed blunt-witted bluntish blur blurry bored boring brainless broken-record bromidic brute cadaverous callous candid canescent cast down cataleptic catatonic characterless chasten chicken chill chilly chloranemic chloroform cinereous cinerous cloddish cloud clouded cloudy cold cold as charity cold blooded cold-blooded coldcock coldhearted colorless comatose common commonplace constrain control cool cowardly cramp crass cripple cushion damp damped dampen dampened dapple dapple gray dapple-gray dappled dappled-gray dark

Adjective(82 words)

languid slow bland colourless dim dreich drowsy harebrained idle impassive inert insipid lackluster leaden lifeless lumpish plodding sad stolid sullen

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Verb(5 words)

be bored benumb blunt damp dampen

Adjective(1 words)

boring

Strong matches (340)

darken de emphasize de-emphasize dead deaden deaden the pain deadening deadly deadly pale deafen deathly pale debilitate debilitated decolor decolorize dejected depress depressed depressing desensitize

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desensitized desiccated detached devitalize dim dim witted dim-witted diminish dimmed dingy direct discolor discolored disedge disinterested dismal dispassionate dispirited doltish dope dopey dormant dove-colored dove-gray dowdy down downhearted downplay drab draggy drain drain of color draw the teeth drearisome drooping droopy drug drugged dry dryasdust dull of mind dull-edged dull-headed dull-pated dull-pointed dull-witted dulled dullen dullish dumb dun duncical dusty earthbound ease ease matters effete elephantine emotionally dead emotionless empty enervate enervated enfeeble etherize etiolate etiolated even tempered even-tempered everlasting everyday eviscerate exanimate exhaust exhausting expressionless exsanguinated exsanguine exsanguineous extenuate fade faded fagging faint faintish fair fair to middling faired fairish fallow fat-witted fatiguing feeble feebleminded flabby flaccid flat floppy foment foul frank freeze frigid frosted frosty frozen fume ghastly give relief glassy glaucescent glaucous gloomy gone gormless gray gray-black gray-brown gray-colored gray-drab gray-green gray-spotted gray-toned gray-white grayed grayish grey griseous grizzle grizzled grizzly groggy gross-headed gruel gutless hack haggard half-witted hard hardened harping hazy heartless heavy hebetate hebetudinous ho hum ho-hum hollow homely homespun hopeless hueless humdrum hypochromic icy imbecile immovable impassible impassive imperceptive impercipient imperturbable impotent in a stupor in abeyance in suspense inactive inane inanimate indifferent indistinct inert inexcitable infecund infertile inirritable insane insensate insensible insentient insipid insouciant insusceptible inured invariable irksome iron-gray jaded jejune jog trot jog-trot kayo keep within bounds kill knock out knock senseless knock stiff knock unconscious ko lackadaisical lacklustre languid languorous

Adjective(109 words)

dateless dead inside dejected dense dented depressed desolate despondent dim-bulb dim-headed dim-witted dingy disconsolate disgruntled disheartened dismal dispassionate dispirited doleful dolesome

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doltish dopey dormant down down in the dumps down in the mouth downcast downhearted downsome dozy drab draggy dull as dishwater dull-headed dull-minded dull-witted dumb dumb as a bag of hammers dumb as a box of rocks dumb as a doorknob dumb as a post dumb as a sack of hammers dumb as an ox dumb as dirt dumber than a box of rocks dumber than a rock dunderheaded elegiac elegious emotionless empty-headed faint fainéant fallow fatheaded fatuous feeble-minded flat flea-brained foolish forlorn fuckwitted fuzzy-headed fuzzy-minded gastropodous gayless glacial gloomy glum gormless grief-stricken grieving gross half-brained half-witted halfhearted hammer-headed headass heartsick heartsore heavy going heavy-footed heavy-hearted ho-hum humdrum idiotic imbecilic immobile immovable impassible inactive inane inanimate inching inconsolable indolent infelicitous insensible intellectually challenged jawfallen jolterheaded joyless knuckleheaded labored lachrymose lackadaisical lame lamebrained lamentful

Adjective(6 words)

deadening dense dim dumb ho-hum irksome

Verb(1 words)

dullen

Related words (566)

Adjective(193 words)

languorous latent lazy lead-footed lethargic lither longsome lotophagous low low-speed low-spirited lowbrow lugubrious lukewarm lumbering lunkheaded matte maudlin meatheaded melancholic

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melancholy mentally challenged mentally retarded mindless miserable monosynaptic monotonous moody mopey moronic morose motionless mournful muddy mundane muttonheaded nitty nitwitted no fun at parties nonactive nonemotional nonfeeling nonpassionate nonplussed nonsentimental not the sharpest crayon in the box not the sharpest knife in the drawer not the sharpest tool in the shed numbskulled oafish obtuse passionate peabrained pedantic pedestrian phlegmatic plain plaintive pococurante pokey ponderous pratty prosaic prosy pudding-headed puerile purblind quarter-witted querulous quiescent quiet quotidian remiss reptilian reptitious retarded rockheaded saddened saturnine sedent sedentary sharp as a bowling ball shattered sheep-headed shit-for-brains silent simple slothful slothlike slow as a snail slow as christmas slow as molasses slow as molasses in january slow on the uptake slow-witted slowfooted sluggish smooth-brained snoozeworthy snoozy sober solemn sombre soporific sorrow-ridden sorrowful sorrowsome spiritless stately static stationary steady still stock-still stodgy straightforward stuffy stupid subglacial suspended swear tardigrade tenebrous tepid testudineous thick thick as a brick thick as a plank thick as a whale omelette thick as champ thick as mince thick as pig shit thick as two short planks thick-skulled thickheaded thickwitted threnetic threnetical torpedinous triste tristful unactive unapprehensive unbusy uncharismatic uncheerful uncheery unclever uncolorful unconsolable uncool underbrained unemotional unemployed unenthusiastic unfeeling unhappy unholiday unimpressible unintelligent uninteresting unlively unmovable unmoved unmoving unoccupied unpassionate unsentimental unsmart unspeedy untouched untrendy unzealous vacant vacuous vanilla vapid weaksauce white bread wistful witless woe woebegone woeful wooden wooden-headed woodenheaded wool-headed woolly-headed woolly-minded work-shy wretched zingless

laodicean latent lay lay low lay out lead-gray lean lengthy lenify lessen lethargic lifeless lighten limber limp listless literal literal minded livid logy

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long winded long-winded low spirited low-spirited lowering lull lumpish lurid lusterless lustless marrowless mat matt matter-of-fact mealy mediocre medium middling mitigate moderate modest modulate mollify monotone moribund moronic mouse colored mouse-colored mouse-gray mousy muddy muffled mull mundane murky mute muted namby pamby namby-pamby narcotize natural neat nerveless neutral nonchalant nonemotional nubilous numbed numbing numskulled obdurate objective obscure obtund obtundent obtuse of a kind of a sort of sorts olympian opaque open ordinary out of touch overcast overclouded pad pale pale as death pale-faced pall palliate pallid palsy paralyze passable passionless passive pasty patient pearl pearl-gray pearly pedestrian pepless peroxide philistine phlegmatic pithless plain plain spoken plain-speaking plain-spoken play down plodding pluckless poetryless pointless poky ponderous pooped poultice pour balm into pour oil on powerless prolix prosaic prosing prosy pure put to sleep quaker-colored rattle reduce reduce the temperature relieve repress resigned respectable restrain retard retund rocky rounded rubbery rustic sad sallow salve sap sapless sated sedentary self-absorbed severe shake shake up sickly silver silver-gray silvered silvery simple simple-speaking simpleminded sinewless singsong slack slacken slake slate-colored slaty sleeping sleepy slow slow down slow witted slow-witted slumbering smoke-gray smoky smoldering smoothed smother smothered so so so-so sober sober down soft soft pedal soft-pedal soften soften up solemn somber somnolent soothe soporific sordo soulless spare spartan spineless spiritless spunkless stagnant stagnating staid standing stark static steady steel-gray steely sterile stiff stifle stifled stodgy stoic stolid stone-colored stop straightforward strengthless stuffy stultified stultify stun stupe stupefied stupefy stupid subdue subfusc sunless superficial supine suppress suspended take the edge off tallow-faced tame tarnish tasteless taupe tedious temper tepid thick thick skinned thick witted thick-brained thick-headed thick-pated thick-skinned thick-witted thickskulled threadbare thudding tiresome tiring tolerable tone tone down toneless torpid treadmill trite tune down turn unadorned unaffected unaffectionate unaroused unbrace uncaring uncharismatic uncolored unconcerned undermine underplay undisturbable unedged unembellished unemotional uneventful unfanciful unfeeling unfelt unflappable unhardened unideal unidealistic unimaginative unimpassioned unimpressionable uninspired uninterested uninteresting uninventive unirritable unlively unloving unman unnerve unnerved unnervous unoriginal unpassionate unperceptive unpoetic unpoetical unpointed unresponding unresponsive unromantic unromanticized unsaturated unsharp unsightly unstrengthen unstring unstrung unsusceptible unsympathetic untouchable unvarnished unvarying vacuity vague vapid vegetable vegetative wan wash out washed out washed-out waxen weak weaken weakly weariful weariness wearisome weary whey-faced white whiten wishy washy wishy-washy withdrawn wooden world-weary

Adjective(11 words)

leaden muffled muted obtuse slow sluggish softened tedious thudding tiresome wearisome

Verb(7 words)

make silent muffle mute numb pall stultify tone down

Related word relations

OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.

3 relation types

derived

1 entries

tooth duller

derived from

1 entries

dull

form of

1 entries

dull

Sample sentences

3 total sentences available.

Tatoeba + Wiktionary

What could be duller than a semantics class with Ben Stein?

Source: tatoeba (754156)

Erik is duller than Emily who, until yesterday, was the dullest person I knew.

Source: tatoeba (1126650)

But, of all, your grace must fly phlebotomy, fresh pork, conger, and clarified whey: they are all dullers of the vital spirits.

Source: wiktionary

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.