dichromatic vs coloured

dichromatic is not a noun while coloured is a noun.

Word	Noun	Adjective	Verb	Adverb
dichromatic	No	Yes	No	No
coloured	Yes	Yes	No	No

dichromatic (noun)	coloured (noun)
	a United States term for Blacks that is now considered offensive

dichromatic (adjective)	coloured (adjective)
of or relating to dichromatism	having color or a certain color; sometimes used in combination
having two colors	(used of color) artificially produced; not natural
	having skin rich in melanin pigments;
	favoring one person or side over another