button-down adjective 3noun 2forms 1 adjective3 •Of a collar, able to be buttoned down to the shirt, as over a necktie. •Serious; staid; businesslike. •Conservative; conventional; unimaginative. noun2 •A shirt with a button-down collar.Wearing a stylish pink button-down with white pinstripes, Ozzie Guillen beamed about feeling like he had "come home" when he was presented Wednesday as the manager of the Miami Marlins. — 2011 •(informal) A button-up shirt. formsbutton-downs
