The Collaborative International Dictionary of English v.0.48:

Abrasive \Ab*ra"sive\, a.
   Producing abrasion. --Ure.
   [1913 Webster] Abraum

WordNet (r) 3.0 (2006):

abrasive
    adj 1: causing abrasion [syn: abrasive, scratchy]
    2: sharply disagreeable; rigorous; "the harsh facts of court
       delays"; "an abrasive character" [syn: harsh, abrasive]
    n 1: a substance that abrades or wears down [syn: abrasive,
         abradant, abrasive material]

Moby Thesaurus II by Grady Ward, 1.0:

69 Moby Thesaurus words for "abrasive":
   ablation, ablative, abradant, abrasion, aluminum oxide, attrition,
   attritive, auto polish, buffing, burnish, burnishing, chafe,
   chafing, colcothar, corundum, crocus, detrition, dressing, emery,
   emery board, emery paper, erasure, erosion, erosive, file, filing,
   fretting, galling, garnet, gnawing, grazing, grinding, lawn-roller,
   limation, nail file, polish, polishes, polishing, pumice,
   pumice stone, rasp, rasping, roller, rottenstone, rouge,
   rubbing away, sandblasting, sanding, sandpaper, scouring, scrape,
   scraping, scratch, scratching, scrub, scrubbing, scuff, shining,
   shoe polish, silicon carbide, silver polish, sleeker, slicker,
   smooth, smoother, smoothing, wax, wear, wearing away