one-sided vs unilateral

one-sided and unilateral both are adjectives.

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

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

one-sided (adjective)	unilateral (adjective)
not reversible or capable of having either side out	involving only one part or side
involving only one part or side	tracing descent from either the paternal or the maternal line only
favoring one person or side over another