self-coloured en · ADJ
Etymology
From self- + coloured.
Meanings
-
(UK, not-comparable) Of a single uniform colour.
The glass fibre body has the advantage of lightness and obviates the need for painting as the material is self-coloured in the standard B.R. maroon livery.
1961 October, “Car carriage by rail - at home and abroad: 1. New B.R. "covered wagons"”, in Trains Illustrated, page 594: