coloured vs one-sided

coloured is a noun but one-sided is not a noun.

Word	Noun	Adjective	Verb	Adverb
coloured	Yes	Yes	No	No
one-sided	No	Yes	No	No

As adjectives, coloured and one-sided are synonyms defined as:

Other synonyms of coloured include biased, colored, slanted.

coloured (noun)	one-sided (noun)
a United States term for Blacks that is now considered offensive

coloured (adjective)	one-sided (adjective)
having color or a certain color; sometimes used in combination	not reversible or capable of having either side out
(used of color) artificially produced; not natural	involving only one part or side
having skin rich in melanin pigments;	favoring one person or side over another
favoring one person or side over another