retardant

from WordNet (r) 3.0 (2006)

retardant
    n 1: any agent that retards or delays or hinders; "flame-
         retardant" [syn: {retardant}, {retardent}, {retardation}]

from Moby Thesaurus II by Grady Ward, 1.0

27 Moby Thesaurus words for "retardant":
      complaining, disputatious, disputing, dissentient, dissenting,
      fractious, noncooperative, objecting, obstructive,
      on the barricades, proof against, protesting, rebellious,
      recalcitrant, refractory, reluctant, renitent, repellent,
      resistant, resisting, resistive, retardative, uncooperative,
      unsubmissive, unyielding, up in arms, withstanding