dim

1 of 4

adjective

ˈdim 

dimmer; dimmest

1

a

: emitting or having a limited or insufficient amount of light

dim stars

a dim lamp

a dim hallway

b

: dull, lusterless

dim colors

c

: lacking pronounced, clear-cut, or vigorous quality or character

a dim echo of the past

2

a

: seen indistinctly

a dim outline

b

: perceived by the senses or mind indistinctly or weakly : faint

had only a dim notion of what was going on

c

: having little prospect of favorable result or outcome

a dim future

d

: characterized by an unfavorable, skeptical, or pessimistic attitude

—usually used in the phrase take a dim view of

takes a dim view of human nature

3

: dim-witted

too dim to understand the joke

4

: not perceiving clearly and distinctly

dim eyes

dimly adverb

dimmable

ˈdi-mə-bəl 

adjective

dimness noun

dim

2 of 4

verb

dimmed; dimming

transitive verb

1

: to reduce the light from

dim the headlights

2

: to make dim or lusterless

dimmed their hopes of an early settlement

intransitive verb

: to become dim

the lights dimmed

their beauty had dimmed

dim

3 of 4

noun

1

automotive vehicles : low beam

2

archaic : dusk, dimness

dim

4 of 4

abbreviation

1

dimension

2

diminished

3

diminuendo

4

diminutive

Synonyms of dim

Adjective

• darkened
• dark
• murky

Verb

• obscure
• darken
• blur

Examples of dim in a Sentence

Adjective

Just the dim outline of the building could be seen through the fog.

I have a dim memory of your last visit.

Verb

The latest setback has dimmed hopes of an early settlement.

Hopes of an early settlement have dimmed.

Recent Examples on the Web

Adjective

At 10 feet, the ceiling of The Wilder’s dim drinking den is a perfect playground to practice before the event, tall enough to windmill bar spoons between his fingers, toss vodka skyward and catch bottles behind his back. —Phillip Valys, Sun Sentinel, 4 June 2026

Prospects for a lasting deal between Iran and the US that addresses Washington’s security interests and allows Tehran to prosper are dim because there’s no win-win formula. —Mohammed Sergie, semafor.com, 4 June 2026

Verb

The Senate tried to approve its own versions later Thursday but also failed, dimming the chances to prevent what could be rare lapse of spy powers. —Mary Clare Jalonick, Los Angeles Times, 11 June 2026

Finally, nearly three hours after doors opened … the lights dimmed, and from a set of doors at the side of the orchestra, Madonna — wearing sunglasses, a shimmering silver dress, and a hulking white fur coat — emerged like Old Deuteronomy. —Tom Smyth, Vulture, 7 June 2026

Noun

The dim, dashing setting for a breakout hit in Montecito Heights? —Bill Addison, Los Angeles Times, 30 May 2026

Each bed has a dim, bedside lamp for individual lighting. —Emily Manthei, Travel + Leisure, 10 May 2026

Word History

Etymology

Adjective, Verb, and Noun

Middle English, from Old English dimm; akin to Old High German timber dark

First Known Use

Adjective

before the 12th century, in the meaning defined at sense 1a

Verb

before the 12th century, in the meaning defined at transitive sense 2

Noun

14th century, in the meaning defined at sense 2

Phrases Containing dim

• dim bulb
• dim sum
• dim view
• dim-witted
• take a dim view
• takes a dim view
• the dim and distant past

Rhymes for dim

• brim
• clim
• grim
• gym
• him
• hymn
• im
• limb
• mim
• prim
• rim
• scrim

Kids Definition

dim

1 of 2 adjective

ˈdim 

dimmer; dimmest

1

: not bright or clear : obscure, faint

a dim light

2

: being without luster : dull

dim colors

3

a

: not seeing or understanding clearly

dim eyes

b

: not seen or understood clearly

had only a dim notion of what was going on

dimly adverb

dimness noun

dim

2 of 2 verb

dimmed; dimming

1

: to make or become dim

2

: to reduce the light from

Medical Definition

dim

abbreviation

diminished