adjective. ['ˈmɑːrdʒənəl'] at or constituting a border or edge.
adjective. ['ˈmɑːrdʒənəl'] of questionable or minimal quality.
adjective. ['ˈmɑːrdʒənəl'] producing at a rate that barely covers production costs.
adjective. ['ˈmɑːrdʒənəl'] just barely adequate or within a lower limit.