English Reference

Word

dull

US/ˈdəɫ/

UK/dˈʌl/

Definitions

01boring

B1 · Intermediate

adj. not interesting or exciting in any way.

adj. lacking interest or excitement; tedious.

“The lecture was so dull that half the students fell asleep.”

“The critic dismissed the film as a dull repetition of tropes that have been explored more effectively in earlier works.”

02not sharp

B2 · Upper Intermediate

adj. having an edge that is not sharp and cannot cut easily.

adj. lacking a sharp edge or point; blunt.

“It is difficult to chop vegetables with such a dull knife.”

“The carpenter set aside the dull chisel, noting that the blade required significant honing before it could produce a clean cut.”

Synonyms

Antonyms

03not bright or shiny

B1 · Intermediate

adj. not bright, shiny, or clear; often used for colours or weather.

adj. lacking brilliance or luster; matte or overcast.

“The sky was a dull grey just before the rain started to fall.”

“Years of neglect had left the silver trophy with a dull finish that resisted even the most vigorous polishing.”

04low intensity pain

B2 · Upper Intermediate Medicine

adj. used to describe a pain that is not sharp but stays for a long time.

adj. describing a physical sensation that is indistinct, muffled, or lacking in sharpness but persistent.

“He felt a dull ache in his lower back after working in the garden.”

“The patient complained of a dull, throbbing sensation in her temples that intensified whenever she was exposed to bright light.”

Synonyms

Antonyms

05to reduce intensity

B2 · Upper Intermediate

v. to make a feeling, pain, or sound less strong or sharp.

v. to moderate, soften, or reduce the intensity of a sensation or quality.

“The doctor gave her some medicine to dull the pain after the surgery.”

“The heavy curtains were designed to dull the noise from the busy street outside, creating a quiet sanctuary for the residents.”

Antonyms

06to make less sharp

C1 · Advanced Formal

v. to make an edge less sharp through use or damage.

v. to remove the sharpness of an edge or point; to blunt.

“Cutting through thick cardboard will quickly dull your scissors.”

“Constant contact with the abrasive sandy soil served to dull the plough's blade far sooner than the farmer had anticipated.”

Synonyms

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “dull” in context.

Verb

01. become dull

“The kitchen knives have become dull over time and need to be sharpened.”

verb + adj

02. dull the pain

“The doctor gave her some medication to help dull the pain after the surgery.”

verb + noun

03. dull the senses

“The cold weather seemed to dull his senses, making him feel slow and tired.”

verb + noun

Adjective

04. dull ache

“After the long hike, I had a dull ache in my lower back that wouldn't go away.”

adj + noun

05. dull thud

“We heard a dull thud when the heavy book fell onto the thick carpet.”

adj + noun

06. incredibly dull

“The lecture was incredibly dull, and half the students were struggling to stay awake.”

adv + adj

Noun

07. dull glow

“The embers in the fireplace emitted a dull glow in the dark room.”

adj + noun

Real-World Examples

“When your nose is blocked, even your favorite foods can seem dull.”
The Conversation 3 Aug 2026
“She was asked to speak about geography in Scotland, which she thought could be “quite dull”, and instead began researching the first Geographer Royal, who turned out to be “a really interesting character”.”
The Guardian 28 Jul 2026

Etymology

From Middle English dull, dul (also dyll, dill, dwal), from Old English dol (“dull, foolish, erring, heretical; foolish, silly; presumptuous”), from Proto-West Germanic dol, from Proto-Germanic dulaz, from earlier dwulaz, a variant of dwalaz (“stunned, mad, foolish, misled”), from Proto-Indo-European dʰwel-, dʰewel- (“to dim, dull, cloud, make obscure, swirl, whirl”). Cognate with Scots dull, doll (“slow to understand or hear, deaf, dull”), North Frisian dol (“rash, unthinking, giddy, flippant”), Dutch dol (“crazy, mad, insane”), Low German dul, dol (“mad, silly, stupid, fatuous”), German toll (“crazy, mad, wild, fantastic”), Danish dval (“foolish, absurd”), Icelandic dulur (“secretive, silent”), West-Flemish dul (angry, furious).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper IntermediateOxford
Updated

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