paintless

adj

1. (not-comparable)Without paint: unpainted (of an object), not involving paint (of a finishing process), or whose paint has worn off (of an object).

   “In 1919, demobilisation specials from Purfleet, Essex, to the North, usually made up of nondescript, almost paintless or grey stock which had seen long wartime service, chalked with slogans, were worked through by way of Bromley and the North London line […].”

   “Residences of a development named Hilltop Place mimic wooden farmhouses with barns attached, painted gray to look paintless but remain tidy.”