unnoticeable
      adj 1: not obtrusive or undesirably noticeable; "a quiet,
             unobtrusive life of self-denial" [syn: unobtrusive]
             [ant: obtrusive]
      2: not noticeable; not drawing attention; "her clothes were
         simple and unnoticeable"- J.G.Cozzens [ant: noticeable]
      3: not drawing attention; "an unnoticeable cigarette burn on
         the carpet"; "an obscure flaw" [syn: obscure]