[1] : The Collaborative International Dictionary of English v.0.48

lusterless \lus"terless\, lustreless \lus"treless\, a.
   destitute of luster; dim; dull.
   1913 webster

[2] : WordNet (r) 2.0

lustreless
     adj 1: lacking brilliance or vitality; "a dull lackluster life"; "a
            lusterless performance" syn: lackluster, lacklustre,
             lusterless
     2: lacking luster or shine; "staring with lackluster eyes";
        "lusterless hair" syn: lackluster, lacklustre, lusterless
see also:
lackluster lacklustre lusterless 

Lustreless >> L Words
Lustreless, definition of term: Lustreless
lustreless_pag1.html