coloured vs monochromatic

coloured is a noun but monochromatic is not a noun.

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

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

coloured (adjective)	monochromatic (adjective)
having color or a certain color; sometimes used in combination	(of light or other electromagnetic radiation) having only one wavelength
(used of color) artificially produced; not natural	of or relating to monochromatism
having skin rich in melanin pigments;	having or appearing to have only one color
favoring one person or side over another