nonmetallic

from WordNet (r) 3.0 (2006)

nonmetallic
    adj 1: not containing or resembling or characteristic of a
           metal; "nonmetallic elements" [syn: {nonmetallic},
           {nonmetal}] [ant: {metal(a)}, {metallic}]

from The Collaborative International Dictionary of English v.0.48

Nonmetallic \Non`me*tal"lic\, a.
   1. Not metallic.
      [1913 Webster]

   2. (Chem.) Resembling, or possessing the properties of, a
      nonmetal or metalloid; as, sulphur is a nonmetallic
      element.
      [1913 Webster]