WordNet (r) 3.0 (2006):

skimpy
    adj 1: containing little excess; "a lean budget"; "a skimpy
           allowance" [syn: lean, skimpy]

Moby Thesaurus II by Grady Ward, 1.0:

67 Moby Thesaurus words for "skimpy":
   Lenten, Spartan, abstemious, ascetic, austere, cheeseparing,
   chinchy, chintzy, deficient, dwarfed, dwarfish, exiguous, failing,
   frugal, impoverished, inadequate, infrequent, insufficient, jejune,
   lean, limited, meager, mean, miserly, narrow, niggardly, paltry,
   parsimonious, piddling, poor, puny, rare, scant, scanty, scarce,
   scattered, scrawny, scrimp, scrimping, scrimpy, seldom met with,
   seldom seen, shy, skimp, skimping, slender, slight, slim, small,
   spare, sparing, sparse, spotty, sprinkled, starvation, stingy,
   stinted, straitened, stunted, subsistence, thin, tight,
   unnourishing, unnutritious, wanting, watered, watery