button-down


button-down (http://definr.com/button-down)

     adj 1: unimaginatively conventional; "a colorful character in the
            buttoned-down, dull-gray world of business"- Newsweek
            [syn: buttoned-down, conservative]
     2: of a shirt; having the ends of the collar fastened down by
        buttons; "Brooks Brothers button-down shirts"