- thin - of relatively small extent from one surface to the opposite or in cross section; "thin wire"; "a thin chiffon blouse"; "a thin book"; "a thin layer of paint"
Antonyms: thick, deep, deep-chested, fat, four-ply, heavy, quilted, three-ply, two-ply, thickened
- thin, lean - lacking excess flesh; "you can't be too rich or too thin"; "Yon Cassius has a lean and hungry look"-Shakespeare
Antonyms: fat, abdominous, paunchy, potbellied, blubbery, buxom, chubby, embonpoint, plump, zaftig, zoftig, compact, heavyset, stocky, thick, thickset, corpulent, obese, weighty, rotund, double-chinned, jowly, loose-jowled, dumpy, podgy, pudgy, tubby, fattish, fleshy, heavy, overweight, gross, porcine, portly, stout
- slender, thin - very narrow; "a thin line across the page"
Antonyms: wide, broad (indirect, via narrow)
- flimsy, slight, tenuous, thin - having little substance or significance; "a flimsy excuse"; "slight evidence"; "a tenuous argument"; "a thin plot"
Antonym: strong (indirect, via weak)
- sparse, thin - not dense; "a thin beard"; "trees were sparse"
Antonym: concentrated (indirect, via distributed)
- thin - relatively thin in consistency or low in density; not viscous; "air is thin at high altitudes"; "a thin soup"; "skimmed milk is much thinner than whole milk"; "thin oil"
Antonyms: thick, clogged, clotted, creamy, dense, impenetrable, gelatinous, gelatinlike, jellylike, heavy, ropy, ropey, stringy, thready, syrupy, viscous, thickened, coagulable, coagulate, coagulated, curdled, grumous, grumose
- thin - (of sound) lacking resonance or volume; "a thin feeble cry"
Antonyms: full, booming, stentorian, grumbling, rumbling, plangent, rich, orotund, rotund, round, pear-shaped, sounding, heavy, sonorous
- thin - lacking spirit or sincere effort; "a thin smile"
Antonym: spirited (indirect, via spiritless)