noun British.

a person who is trying to lose weight, especially by dieting.

Origin of slimmer



adjective, slim·mer, slim·mest.

slender, as in girth or form; slight in build or structure.
poor or inferior: a slim chance; a slim excuse.
small or inconsiderable; meager; scanty: a slim income.
sized for the thinner than average person.

verb (used with object), slimmed, slim·ming.

to make slim.

verb (used without object), slimmed, slim·ming.

to become slim.
Chiefly British. to try to become more slender, especially by dieting.


a garment size meant for a thin person.

Verb Phrases

slim down,
  1. to lose weight, especially intentionally.
  2. (of a business) to reduce operating expenses; economize.

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

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

Antonyms for slim Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for slimmer

Contemporary Examples of slimmer

Historical Examples of slimmer

British Dictionary definitions for slimmer


adjective slimmer or slimmest

small in width relative to height or length
small in amount or qualityslim chances of success

verb slims, slimming or slimmed

to make or become slim, esp by diets and exercise
to reduce or decrease or cause to be reduced or decreased
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




the E African name for AIDS

Word Origin for Slim

from its wasting effects




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)
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 slimmer



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.



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.

Online Etymology Dictionary, © 2010 Douglas Harper