achromatic colour
Grey
Grey or
gray (see
spelling differences) is an intermediate
color between
black and
white. It is a neutral or achromatic color, meaning literally that it is a color "without color". It is the color of a cloud-covered sky, of
ash and of
lead.
achromatic colour
Noun
1. a color lacking hue; white or gray or black
(synonym) achromatic color
(hypernym) color, colour, coloring, colouring
(hyponym) black, blackness
achromatic colour