1(of a person or their build) gracefully thin; slender:her slim figurethe girls were tall and slim
(of a thing) small in width and typically long and narrow in shape:a slim gold band encircled her wrist
(of a garment) cut on slender lines; designed to make the wearer appear slim:a pair of slim, immaculately cut trousers
(of a business or other organization) reduced to a smaller size in the hope that it will become more efficient:companies will extract all possible productivity gains from their slimmer workforces before adding people
2(of something abstract, especially a chance or margin) very small:there was just a slim chance of successa slim majority of sixteen
3South African crafty, sly, or unscrupulous.
1 [in singular] a course or period of slimming:a sponsored slim