slim

1 of 2

adjective

ˈslim 

slimmer; slimmest

1

: of small diameter or thickness in proportion to the height or length : slender

2

a

: mean, worthless

b

: adroit, crafty

3

a

: inferior in quality or amount : slight

b

: scanty, small

a slim chance

slimly adverb

slimness noun

slim

2 of 2

verb

slimmed; slimming

transitive verb

: to make slender : decrease the size of

intransitive verb

: to become slender

Synonyms of slim

Adjective

• thin
• slender
• narrow
• skinny

Choose the Right Synonym for slim

thin, slender, slim, slight, tenuous mean not thick, broad, abundant, or dense.

thin implies comparatively little extension between surfaces or in diameter, or it may imply lack of substance, richness, or abundance.

thin wire

a thin soup

slender implies leanness or spareness often with grace and good proportion.

the slender legs of a Sheraton chair

slim applies to slenderness that suggests fragility or scantiness.

a slim volume of poetry

a slim chance

slight implies smallness as well as thinness.

a slight build

tenuous implies extreme thinness, sheerness, or lack of substance and firmness.

a tenuous thread

Examples of slim in a Sentence

Adjective

She looked slim and fit for her age.

He has a slim build.

I was a lot slimmer in those days.

They have only a slim chance of winning.

Verb

She started exercising to slim her thighs.

I'll skip dessert; I'm slimming.

Recent Examples on the Web

Adjective

On the weekends, throw on some slim sneakers to keep your look feeling more grounded. —India Roby, Glamour, 21 Mar. 2026

Miami held tight to its slim lead until midway through the second half, when the Tigers ran off eight straight points to pull ahead. —ABC News, 21 Mar. 2026

Verb

This detail slims the leg and creates a much more refined silhouette when paired with black skinny jeans. —René Chávez Esparza, Glamour, 17 Mar. 2026

As for the new tunnel, slim it down by dispensing with outmoded technology that the rest of the world has abandoned like bench walls and, most critically, change the alignment of the tunnel. —New York Daily News Editorial Board, New York Daily News, 16 Feb. 2026

Word History

Etymology

Adjective

Dutch, bad, inferior, from Middle Dutch slimp crooked, bad; akin to Middle High German slimp awry

First Known Use

Adjective

1657, in the meaning defined at sense 1

Verb

1862, in the meaning defined at transitive sense

Phrases Containing slim

• slim chance
• slim down
• slim-jim
• slim pickings
• slim to none

Rhymes for slim

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

Kids Definition

slim

1 of 2 adjective

ˈslim 

slimmer; slimmest

1

: of small diameter or thickness in comparison with the height or length

2

a

: low in quality or quantity : slight

b

: scanty, small

has a slim chance of winning

slimly adverb

slimness noun

slim

2 of 2 verb

slimmed; slimming

: to make or become slender