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See more synonyms for slim on Thesaurus.com
adjective, slim·mer, slim·mest.
  1. slender, as in girth or form; slight in build or structure.
  2. poor or inferior: a slim chance; a slim excuse.
  3. small or inconsiderable; meager; scanty: a slim income.
  4. sized for the thinner than average person.
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verb (used with object), slimmed, slim·ming.
  1. to make slim.
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verb (used without object), slimmed, slim·ming.
  1. to become slim.
  2. Chiefly British. to try to become more slender, especially by dieting.
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  1. a garment size meant for a thin person.
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Verb Phrases
  1. slim down,
    1. to lose weight, especially intentionally.
    2. (of a business) to reduce operating expenses; economize.
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Origin of slim

1650–60; < Dutch slim sly, (earlier) crooked (cognate with German schlimm bad, (earlier) crooked)
Related formsslim·ly, adverbslim·ness, nounun·slim, adjectiveun·slim·ly, adverbun·slim·ness, nounun·slimmed, adjective

Synonyms for slim

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1. thin. See slender. 3. insignificant, trifling, trivial, paltry.

Antonyms for slim

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for slimming

reduce, diet, slenderize

Examples from the Web for slimming

Contemporary Examples of slimming

British Dictionary definitions for slimming


    1. the process of or concern with becoming slim or slimmer as by losing weight
    2. (as modifier)slimming aids
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adjective slimmer or slimmest
  1. small in width relative to height or length
  2. small in amount or qualityslim chances of success
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verb slims, slimming or slimmed
  1. to make or become slim, esp by diets and exercise
  2. to reduce or decrease or cause to be reduced or decreased
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See also slim down
Derived Formsslimly, adverbslimmer, nounslimness, noun

Word Origin for slim

C17: from Dutch: crafty, from Middle Dutch slimp slanting; compare Old High German slimbi obliquity


  1. the E African name for AIDS
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Word Origin for Slim

from its wasting effects


  1. William Joseph, 1st Viscount. 1891–1970, British field marshal, who commanded (1943–45) the 14th Army in the reconquest of Burma (now called Myanmar) from the Japanese; governor general of Australia (1953–60)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for slimming


"producing an appearance of thinness," 1925, present participle adjective from slim (v.).

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1650s, "thin, slight, slender," from Dutch slim "bad, sly, clever," from Middle Dutch slim "bad, crooked," from Proto-Germanic *slembaz "oblique, crooked" (cf. Middle High German slimp "slanting, awry," German schlimm "bad, cunning, unwell"). In English 17c. also sometimes with a sense "sly, cunning, crafty." Related: Slimly; slimness. With obsolete extended adjectival forms Slimsy "flimsy, unsubstantial" (1845); slimikin "small and slender" (1745). Slim Jim attested from 1887 in sense of "very thin person;" from 1902 as a type of slender cigar; from 1975 as a brand of meat snack.

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1808, "to scamp one's work, do carelessly or superficially," from slim (adj.). Meaning "to make slim" (a garment, etc.) is from 1862; meaning "reduce (one's) weight" is from 1930. Related: Slimmed; slimming.

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Online Etymology Dictionary, © 2010 Douglas Harper