English Reference

Word

dim

US/ˈdɪm/

UK/dˈɪm/

Definitions

01not bright

B1 · Intermediate

adj. having very little light, making it difficult to see clearly.

adj. characterised by a low level of light; lacking brightness or clarity of illumination.

“The light in the hallway was too dim to read the room numbers.”

“The dim glow from the streetlamp barely reached the far corner of the garden, leaving most of the path in deep shadow.”

Synonyms

Antonyms

02not smart

B2 · Upper Intermediate Informal

adj. not very intelligent or quick to understand things.

adj. lacking intellectual acuity or mental sharpness.

“He is a nice guy, but he can be a bit dim when it comes to technology.”

“The character is portrayed as well-meaning but somewhat dim, often missing the obvious clues that the audience sees immediately.”

Synonyms

slowthickunintelligent

03unclear or faint

B2 · Upper Intermediate

adj. not clear in your mind, like a memory that is fading.

adj. lacking distinctness in the mind or senses; faint or indistinct.

“I have a dim memory of visiting this park when I was a small child.”

“The distant mountains were only a dim outline against the grey morning sky.”

Antonyms

04to make less bright

B2 · Upper Intermediate

v. to make a light less bright, or to become less bright yourself.

v. to reduce the intensity of a light source; may be used transitively or intransitively.

“The lights began to dim just before the movie started.”

“The theatre manager instructed the technician to dim the house lights slowly to signal that the performance was about to begin.”

Synonyms

Collocations

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

Verb

01. appear dim

“The stars appear dim in the polluted night sky.”

verb + adj

02. grow dim

“The lights began to grow dim as the performance started.”

verb + adj

Adjective

03. extremely dim

“The stars looked extremely dim through the city smog.”

adv + adj

04. fairly dim

“The restaurant was fairly dim, with only candles on the tables.”

adv + adj

Noun

05. dim bulb

“He is nice, but a bit of a dim bulb in class.”

adj + noun

06. dim light

“We read by dim light during the power cut.”

adj + noun

07. dim memory

“I have only a dim memory of my first school.”

adj + noun

08. dim outline

“We could see the dim outline of the mountains.”

adj + noun

09. dim prospect

“There is only a dim prospect of a quick recovery.”

adj + noun

10. dim room

“She waited alone in a dim room at the back.”

adj + noun

11. a bit dim

“He can be a bit dim sometimes, but he is very kind.”

12. a dim memory of

“I have a dim memory of visiting the zoo as a child.”

Real-World Examples

“Age has slowed her body, but it has not dimmed the songs that have stayed with her for more than seven decades.”
Al Jazeera 14 Aug 2026
“My fitness dimmed, my sense of heaviness grew, the ocean became strange to me.”
The Guardian 12 Sept 2026

Word family

ADJECTIVE

dim(B2)

Idioms

Domain

Music

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 Intermediate
Updated

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English Reference